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Moved the firmware from HAL to LL.

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This commit is contained in:
David Žaitlík
2021-06-07 16:40:28 +02:00
parent eedfcba0a5
commit bf27412d2b
147 changed files with 30463 additions and 7714 deletions
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1588
fw/Drivers/STM32L0xx_HAL_Driver/Inc/stm32l0xx_hal_uart.h
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fw/Drivers/STM32L0xx_HAL_Driver/Inc/stm32l0xx_hal_uart_ex.h
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/**
******************************************************************************
* @file stm32l0xx_hal_uart_ex.h
* @author MCD Application Team
* @brief Header file of UART HAL Extended module.
******************************************************************************
* @attention
*
* <h2><center>&copy; Copyright (c) 2016 STMicroelectronics.
* All rights reserved.</center></h2>
*
* This software component is licensed by ST under BSD 3-Clause license,
* the "License"; You may not use this file except in compliance with the
* License. You may obtain a copy of the License at:
* opensource.org/licenses/BSD-3-Clause
*
******************************************************************************
*/
/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef STM32L0xx_HAL_UART_EX_H
#define STM32L0xx_HAL_UART_EX_H
#ifdef __cplusplus
extern "C" {
#endif
/* Includes ------------------------------------------------------------------*/
#include "stm32l0xx_hal_def.h"
/** @addtogroup STM32L0xx_HAL_Driver
* @{
*/
/** @addtogroup UARTEx
* @{
*/
/* Exported types ------------------------------------------------------------*/
/** @defgroup UARTEx_Exported_Types UARTEx Exported Types
* @{
*/
/**
* @brief UART wake up from stop mode parameters
*/
typedef struct
{
uint32_t WakeUpEvent; /*!< Specifies which event will activate the Wakeup from Stop mode flag (WUF).
This parameter can be a value of @ref UART_WakeUp_from_Stop_Selection.
If set to UART_WAKEUP_ON_ADDRESS, the two other fields below must
be filled up. */
uint16_t AddressLength; /*!< Specifies whether the address is 4 or 7-bit long.
This parameter can be a value of @ref UARTEx_WakeUp_Address_Length. */
uint8_t Address; /*!< UART/USART node address (7-bit long max). */
} UART_WakeUpTypeDef;
/**
* @}
*/
/* Exported constants --------------------------------------------------------*/
/** @defgroup UARTEx_Exported_Constants UARTEx Exported Constants
* @{
*/
/** @defgroup UARTEx_Word_Length UARTEx Word Length
* @{
*/
#define UART_WORDLENGTH_7B USART_CR1_M1 /*!< 7-bit long UART frame */
#define UART_WORDLENGTH_8B 0x00000000U /*!< 8-bit long UART frame */
#define UART_WORDLENGTH_9B USART_CR1_M0 /*!< 9-bit long UART frame */
/**
* @}
*/
/** @defgroup UARTEx_WakeUp_Address_Length UARTEx WakeUp Address Length
* @{
*/
#define UART_ADDRESS_DETECT_4B 0x00000000U /*!< 4-bit long wake-up address */
#define UART_ADDRESS_DETECT_7B USART_CR2_ADDM7 /*!< 7-bit long wake-up address */
/**
* @}
*/
/**
* @}
*/
/* Exported macros -----------------------------------------------------------*/
/* Exported functions --------------------------------------------------------*/
/** @addtogroup UARTEx_Exported_Functions
* @{
*/
/** @addtogroup UARTEx_Exported_Functions_Group1
* @{
*/
/* Initialization and de-initialization functions ****************************/
HAL_StatusTypeDef HAL_RS485Ex_Init(UART_HandleTypeDef *huart, uint32_t Polarity, uint32_t AssertionTime,
uint32_t DeassertionTime);
/**
* @}
*/
/** @addtogroup UARTEx_Exported_Functions_Group2
* @{
*/
void HAL_UARTEx_WakeupCallback(UART_HandleTypeDef *huart);
/**
* @}
*/
/** @addtogroup UARTEx_Exported_Functions_Group3
* @{
*/
/* Peripheral Control functions **********************************************/
HAL_StatusTypeDef HAL_UARTEx_StopModeWakeUpSourceConfig(UART_HandleTypeDef *huart, UART_WakeUpTypeDef WakeUpSelection);
HAL_StatusTypeDef HAL_UARTEx_EnableStopMode(UART_HandleTypeDef *huart);
HAL_StatusTypeDef HAL_UARTEx_DisableStopMode(UART_HandleTypeDef *huart);
HAL_StatusTypeDef HAL_UARTEx_EnableClockStopMode(UART_HandleTypeDef *huart);
HAL_StatusTypeDef HAL_UARTEx_DisableClockStopMode(UART_HandleTypeDef *huart);
HAL_StatusTypeDef HAL_MultiProcessorEx_AddressLength_Set(UART_HandleTypeDef *huart, uint32_t AddressLength);
HAL_StatusTypeDef HAL_UARTEx_ReceiveToIdle(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size, uint16_t *RxLen, uint32_t Timeout);
HAL_StatusTypeDef HAL_UARTEx_ReceiveToIdle_IT(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size);
HAL_StatusTypeDef HAL_UARTEx_ReceiveToIdle_DMA(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size);
/**
* @}
*/
/**
* @}
*/
/* Private macros ------------------------------------------------------------*/
/** @defgroup UARTEx_Private_Macros UARTEx Private Macros
* @{
*/
/** @brief Report the UART clock source.
* @param __HANDLE__ specifies the UART Handle.
* @param __CLOCKSOURCE__ output variable.
* @retval UART clocking source, written in __CLOCKSOURCE__.
*/
#if defined (STM32L031xx) || defined (STM32L041xx) || defined (STM32L011xx) || defined (STM32L021xx) || defined (STM32L010xB) || defined (STM32L010x8) || defined (STM32L010x6) || defined (STM32L010x4)
#define UART_GETCLOCKSOURCE(__HANDLE__,__CLOCKSOURCE__) \
do { \
if((__HANDLE__)->Instance == USART2) \
{ \
switch(__HAL_RCC_GET_USART2_SOURCE()) \
{ \
case RCC_USART2CLKSOURCE_PCLK1: \
(__CLOCKSOURCE__) = UART_CLOCKSOURCE_PCLK1; \
break; \
case RCC_USART2CLKSOURCE_HSI: \
(__CLOCKSOURCE__) = UART_CLOCKSOURCE_HSI; \
break; \
case RCC_USART2CLKSOURCE_SYSCLK: \
(__CLOCKSOURCE__) = UART_CLOCKSOURCE_SYSCLK; \
break; \
case RCC_USART2CLKSOURCE_LSE: \
(__CLOCKSOURCE__) = UART_CLOCKSOURCE_LSE; \
break; \
default: \
(__CLOCKSOURCE__) = UART_CLOCKSOURCE_UNDEFINED; \
break; \
} \
} \
else if((__HANDLE__)->Instance == LPUART1) \
{ \
switch(__HAL_RCC_GET_LPUART1_SOURCE()) \
{ \
case RCC_LPUART1CLKSOURCE_PCLK1: \
(__CLOCKSOURCE__) = UART_CLOCKSOURCE_PCLK1; \
break; \
case RCC_LPUART1CLKSOURCE_HSI: \
(__CLOCKSOURCE__) = UART_CLOCKSOURCE_HSI; \
break; \
case RCC_LPUART1CLKSOURCE_SYSCLK: \
(__CLOCKSOURCE__) = UART_CLOCKSOURCE_SYSCLK; \
break; \
case RCC_LPUART1CLKSOURCE_LSE: \
(__CLOCKSOURCE__) = UART_CLOCKSOURCE_LSE; \
break; \
default: \
(__CLOCKSOURCE__) = UART_CLOCKSOURCE_UNDEFINED; \
break; \
} \
} \
else \
{ \
(__CLOCKSOURCE__) = UART_CLOCKSOURCE_UNDEFINED; \
} \
} while(0)
#elif defined (STM32L051xx) || defined (STM32L052xx) || defined (STM32L053xx) || defined (STM32L062xx) || defined (STM32L063xx)
#define UART_GETCLOCKSOURCE(__HANDLE__,__CLOCKSOURCE__) \
do { \
if((__HANDLE__)->Instance == USART1) \
{ \
switch(__HAL_RCC_GET_USART1_SOURCE()) \
{ \
case RCC_USART1CLKSOURCE_PCLK2: \
(__CLOCKSOURCE__) = UART_CLOCKSOURCE_PCLK2; \
break; \
case RCC_USART1CLKSOURCE_HSI: \
(__CLOCKSOURCE__) = UART_CLOCKSOURCE_HSI; \
break; \
case RCC_USART1CLKSOURCE_SYSCLK: \
(__CLOCKSOURCE__) = UART_CLOCKSOURCE_SYSCLK; \
break; \
case RCC_USART1CLKSOURCE_LSE: \
(__CLOCKSOURCE__) = UART_CLOCKSOURCE_LSE; \
break; \
default: \
(__CLOCKSOURCE__) = UART_CLOCKSOURCE_UNDEFINED; \
break; \
} \
} \
else if((__HANDLE__)->Instance == USART2) \
{ \
switch(__HAL_RCC_GET_USART2_SOURCE()) \
{ \
case RCC_USART2CLKSOURCE_PCLK1: \
(__CLOCKSOURCE__) = UART_CLOCKSOURCE_PCLK1; \
break; \
case RCC_USART2CLKSOURCE_HSI: \
(__CLOCKSOURCE__) = UART_CLOCKSOURCE_HSI; \
break; \
case RCC_USART2CLKSOURCE_SYSCLK: \
(__CLOCKSOURCE__) = UART_CLOCKSOURCE_SYSCLK; \
break; \
case RCC_USART2CLKSOURCE_LSE: \
(__CLOCKSOURCE__) = UART_CLOCKSOURCE_LSE; \
break; \
default: \
(__CLOCKSOURCE__) = UART_CLOCKSOURCE_UNDEFINED; \
break; \
} \
} \
else if((__HANDLE__)->Instance == LPUART1) \
{ \
switch(__HAL_RCC_GET_LPUART1_SOURCE()) \
{ \
case RCC_LPUART1CLKSOURCE_PCLK1: \
(__CLOCKSOURCE__) = UART_CLOCKSOURCE_PCLK1; \
break; \
case RCC_LPUART1CLKSOURCE_HSI: \
(__CLOCKSOURCE__) = UART_CLOCKSOURCE_HSI; \
break; \
case RCC_LPUART1CLKSOURCE_SYSCLK: \
(__CLOCKSOURCE__) = UART_CLOCKSOURCE_SYSCLK; \
break; \
case RCC_LPUART1CLKSOURCE_LSE: \
(__CLOCKSOURCE__) = UART_CLOCKSOURCE_LSE; \
break; \
default: \
(__CLOCKSOURCE__) = UART_CLOCKSOURCE_UNDEFINED; \
break; \
} \
} \
else \
{ \
(__CLOCKSOURCE__) = UART_CLOCKSOURCE_UNDEFINED; \
} \
} while(0)
#else
#define UART_GETCLOCKSOURCE(__HANDLE__,__CLOCKSOURCE__) \
do { \
if((__HANDLE__)->Instance == USART1) \
{ \
switch(__HAL_RCC_GET_USART1_SOURCE()) \
{ \
case RCC_USART1CLKSOURCE_PCLK2: \
(__CLOCKSOURCE__) = UART_CLOCKSOURCE_PCLK2; \
break; \
case RCC_USART1CLKSOURCE_HSI: \
(__CLOCKSOURCE__) = UART_CLOCKSOURCE_HSI; \
break; \
case RCC_USART1CLKSOURCE_SYSCLK: \
(__CLOCKSOURCE__) = UART_CLOCKSOURCE_SYSCLK; \
break; \
case RCC_USART1CLKSOURCE_LSE: \
(__CLOCKSOURCE__) = UART_CLOCKSOURCE_LSE; \
break; \
default: \
(__CLOCKSOURCE__) = UART_CLOCKSOURCE_UNDEFINED; \
break; \
} \
} \
else if((__HANDLE__)->Instance == USART2) \
{ \
switch(__HAL_RCC_GET_USART2_SOURCE()) \
{ \
case RCC_USART2CLKSOURCE_PCLK1: \
(__CLOCKSOURCE__) = UART_CLOCKSOURCE_PCLK1; \
break; \
case RCC_USART2CLKSOURCE_HSI: \
(__CLOCKSOURCE__) = UART_CLOCKSOURCE_HSI; \
break; \
case RCC_USART2CLKSOURCE_SYSCLK: \
(__CLOCKSOURCE__) = UART_CLOCKSOURCE_SYSCLK; \
break; \
case RCC_USART2CLKSOURCE_LSE: \
(__CLOCKSOURCE__) = UART_CLOCKSOURCE_LSE; \
break; \
default: \
(__CLOCKSOURCE__) = UART_CLOCKSOURCE_UNDEFINED; \
break; \
} \
} \
else if((__HANDLE__)->Instance == USART4) \
{ \
(__CLOCKSOURCE__) = UART_CLOCKSOURCE_PCLK1; \
} \
else if((__HANDLE__)->Instance == USART5) \
{ \
(__CLOCKSOURCE__) = UART_CLOCKSOURCE_PCLK1; \
} \
else if((__HANDLE__)->Instance == LPUART1) \
{ \
switch(__HAL_RCC_GET_LPUART1_SOURCE()) \
{ \
case RCC_LPUART1CLKSOURCE_PCLK1: \
(__CLOCKSOURCE__) = UART_CLOCKSOURCE_PCLK1; \
break; \
case RCC_LPUART1CLKSOURCE_HSI: \
(__CLOCKSOURCE__) = UART_CLOCKSOURCE_HSI; \
break; \
case RCC_LPUART1CLKSOURCE_SYSCLK: \
(__CLOCKSOURCE__) = UART_CLOCKSOURCE_SYSCLK; \
break; \
case RCC_LPUART1CLKSOURCE_LSE: \
(__CLOCKSOURCE__) = UART_CLOCKSOURCE_LSE; \
break; \
default: \
(__CLOCKSOURCE__) = UART_CLOCKSOURCE_UNDEFINED; \
break; \
} \
} \
else \
{ \
(__CLOCKSOURCE__) = UART_CLOCKSOURCE_UNDEFINED; \
} \
} while(0)
#endif /* (STM32L031xx) || (STM32L041xx) || (STM32L011xx) || (STM32L021xx) || (STM32L010xB) || (STM32L010x8) || (STM32L010x6) || (STM32L010x4)*/
/** @brief Report the UART mask to apply to retrieve the received data
* according to the word length and to the parity bits activation.
* @note If PCE = 1, the parity bit is not included in the data extracted
* by the reception API().
* This masking operation is not carried out in the case of
* DMA transfers.
* @param __HANDLE__ specifies the UART Handle.
* @retval None, the mask to apply to UART RDR register is stored in (__HANDLE__)->Mask field.
*/
#define UART_MASK_COMPUTATION(__HANDLE__) \
do { \
if ((__HANDLE__)->Init.WordLength == UART_WORDLENGTH_9B) \
{ \
if ((__HANDLE__)->Init.Parity == UART_PARITY_NONE) \
{ \
(__HANDLE__)->Mask = 0x01FFU ; \
} \
else \
{ \
(__HANDLE__)->Mask = 0x00FFU ; \
} \
} \
else if ((__HANDLE__)->Init.WordLength == UART_WORDLENGTH_8B) \
{ \
if ((__HANDLE__)->Init.Parity == UART_PARITY_NONE) \
{ \
(__HANDLE__)->Mask = 0x00FFU ; \
} \
else \
{ \
(__HANDLE__)->Mask = 0x007FU ; \
} \
} \
else if ((__HANDLE__)->Init.WordLength == UART_WORDLENGTH_7B) \
{ \
if ((__HANDLE__)->Init.Parity == UART_PARITY_NONE) \
{ \
(__HANDLE__)->Mask = 0x007FU ; \
} \
else \
{ \
(__HANDLE__)->Mask = 0x003FU ; \
} \
} \
else \
{ \
(__HANDLE__)->Mask = 0x0000U; \
} \
} while(0U)
/**
* @brief Ensure that UART frame length is valid.
* @param __LENGTH__ UART frame length.
* @retval SET (__LENGTH__ is valid) or RESET (__LENGTH__ is invalid)
*/
#define IS_UART_WORD_LENGTH(__LENGTH__) (((__LENGTH__) == UART_WORDLENGTH_7B) || \
((__LENGTH__) == UART_WORDLENGTH_8B) || \
((__LENGTH__) == UART_WORDLENGTH_9B))
/**
* @brief Ensure that UART wake-up address length is valid.
* @param __ADDRESS__ UART wake-up address length.
* @retval SET (__ADDRESS__ is valid) or RESET (__ADDRESS__ is invalid)
*/
#define IS_UART_ADDRESSLENGTH_DETECT(__ADDRESS__) (((__ADDRESS__) == UART_ADDRESS_DETECT_4B) || \
((__ADDRESS__) == UART_ADDRESS_DETECT_7B))
/**
* @}
*/
/* Private functions ---------------------------------------------------------*/
/**
* @}
*/
/**
* @}
*/
#ifdef __cplusplus
}
#endif
#endif /* STM32L0xx_HAL_UART_EX_H */
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

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fw/Drivers/STM32L0xx_HAL_Driver/Inc/stm32l0xx_ll_bus.h Normal file
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fw/Drivers/STM32L0xx_HAL_Driver/Inc/stm32l0xx_ll_cortex.h Normal file
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/**
******************************************************************************
* @file stm32l0xx_ll_cortex.h
* @author MCD Application Team
* @brief Header file of CORTEX LL module.
@verbatim
==============================================================================
##### How to use this driver #####
==============================================================================
[..]
The LL CORTEX driver contains a set of generic APIs that can be
used by user:
(+) SYSTICK configuration used by @ref LL_mDelay and @ref LL_Init1msTick
functions
(+) Low power mode configuration (SCB register of Cortex-MCU)
(+) MPU API to configure and enable regions
(+) API to access to MCU info (CPUID register)
@endverbatim
******************************************************************************
* @attention
*
* <h2><center>&copy; Copyright(c) 2016 STMicroelectronics.
* All rights reserved.</center></h2>
*
* This software component is licensed by ST under BSD 3-Clause license,
* the "License"; You may not use this file except in compliance with the
* License. You may obtain a copy of the License at:
* opensource.org/licenses/BSD-3-Clause
*
******************************************************************************
*/
/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __STM32L0xx_LL_CORTEX_H
#define __STM32L0xx_LL_CORTEX_H
#ifdef __cplusplus
extern "C" {
#endif
/* Includes ------------------------------------------------------------------*/
#include "stm32l0xx.h"
/** @addtogroup STM32L0xx_LL_Driver
* @{
*/
/** @defgroup CORTEX_LL CORTEX
* @{
*/
/* Private types -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private constants ---------------------------------------------------------*/
/* Private macros ------------------------------------------------------------*/
/* Exported types ------------------------------------------------------------*/
/* Exported constants --------------------------------------------------------*/
/** @defgroup CORTEX_LL_Exported_Constants CORTEX Exported Constants
* @{
*/
/** @defgroup CORTEX_LL_EC_CLKSOURCE_HCLK SYSTICK Clock Source
* @{
*/
#define LL_SYSTICK_CLKSOURCE_HCLK_DIV8 (0x00000000U) /*!< AHB clock divided by 8 selected as SysTick clock source.*/
#define LL_SYSTICK_CLKSOURCE_HCLK (SysTick_CTRL_CLKSOURCE_Msk) /*!< AHB clock selected as SysTick clock source. */
/**
* @}
*/
#if __MPU_PRESENT
/** @defgroup CORTEX_LL_EC_CTRL_HFNMI_PRIVDEF MPU Control
* @{
*/
#define LL_MPU_CTRL_HFNMI_PRIVDEF_NONE (0x00000000U) /*!< Disable NMI and privileged SW access */
#define LL_MPU_CTRL_HARDFAULT_NMI MPU_CTRL_HFNMIENA_Msk /*!< Enables the operation of MPU during hard fault, NMI, and FAULTMASK handlers */
#define LL_MPU_CTRL_PRIVILEGED_DEFAULT MPU_CTRL_PRIVDEFENA_Msk /*!< Enable privileged software access to default memory map */
#define LL_MPU_CTRL_HFNMI_PRIVDEF (MPU_CTRL_HFNMIENA_Msk | MPU_CTRL_PRIVDEFENA_Msk) /*!< Enable NMI and privileged SW access */
/**
* @}
*/
/** @defgroup CORTEX_LL_EC_REGION MPU Region Number
* @{
*/
#define LL_MPU_REGION_NUMBER0 (0x00U) /*!< REGION Number 0 */
#define LL_MPU_REGION_NUMBER1 (0x01U) /*!< REGION Number 1 */
#define LL_MPU_REGION_NUMBER2 (0x02U) /*!< REGION Number 2 */
#define LL_MPU_REGION_NUMBER3 (0x03U) /*!< REGION Number 3 */
#define LL_MPU_REGION_NUMBER4 (0x04U) /*!< REGION Number 4 */
#define LL_MPU_REGION_NUMBER5 (0x05U) /*!< REGION Number 5 */
#define LL_MPU_REGION_NUMBER6 (0x06U) /*!< REGION Number 6 */
#define LL_MPU_REGION_NUMBER7 (0x07U) /*!< REGION Number 7 */
/**
* @}
*/
/** @defgroup CORTEX_LL_EC_REGION_SIZE MPU Region Size
* @{
*/
#define LL_MPU_REGION_SIZE_32B ((uint32_t)(0x04U << MPU_RASR_SIZE_Pos)) /*!< 32B Size of the MPU protection region */
#define LL_MPU_REGION_SIZE_64B ((uint32_t)(0x05U << MPU_RASR_SIZE_Pos)) /*!< 64B Size of the MPU protection region */
#define LL_MPU_REGION_SIZE_128B ((uint32_t)(0x06U << MPU_RASR_SIZE_Pos)) /*!< 128B Size of the MPU protection region */
#define LL_MPU_REGION_SIZE_256B ((uint32_t)(0x07U << MPU_RASR_SIZE_Pos)) /*!< 256B Size of the MPU protection region */
#define LL_MPU_REGION_SIZE_512B ((uint32_t)(0x08U << MPU_RASR_SIZE_Pos)) /*!< 512B Size of the MPU protection region */
#define LL_MPU_REGION_SIZE_1KB ((uint32_t)(0x09U << MPU_RASR_SIZE_Pos)) /*!< 1KB Size of the MPU protection region */
#define LL_MPU_REGION_SIZE_2KB ((uint32_t)(0x0AU << MPU_RASR_SIZE_Pos)) /*!< 2KB Size of the MPU protection region */
#define LL_MPU_REGION_SIZE_4KB ((uint32_t)(0x0BU << MPU_RASR_SIZE_Pos)) /*!< 4KB Size of the MPU protection region */
#define LL_MPU_REGION_SIZE_8KB ((uint32_t)(0x0CU << MPU_RASR_SIZE_Pos)) /*!< 8KB Size of the MPU protection region */
#define LL_MPU_REGION_SIZE_16KB ((uint32_t)(0x0DU << MPU_RASR_SIZE_Pos)) /*!< 16KB Size of the MPU protection region */
#define LL_MPU_REGION_SIZE_32KB ((uint32_t)(0x0EU << MPU_RASR_SIZE_Pos)) /*!< 32KB Size of the MPU protection region */
#define LL_MPU_REGION_SIZE_64KB ((uint32_t)(0x0FU << MPU_RASR_SIZE_Pos)) /*!< 64KB Size of the MPU protection region */
#define LL_MPU_REGION_SIZE_128KB ((uint32_t)(0x10U << MPU_RASR_SIZE_Pos)) /*!< 128KB Size of the MPU protection region */
#define LL_MPU_REGION_SIZE_256KB ((uint32_t)(0x11U << MPU_RASR_SIZE_Pos)) /*!< 256KB Size of the MPU protection region */
#define LL_MPU_REGION_SIZE_512KB ((uint32_t)(0x12U << MPU_RASR_SIZE_Pos)) /*!< 512KB Size of the MPU protection region */
#define LL_MPU_REGION_SIZE_1MB ((uint32_t)(0x13U << MPU_RASR_SIZE_Pos)) /*!< 1MB Size of the MPU protection region */
#define LL_MPU_REGION_SIZE_2MB ((uint32_t)(0x14U << MPU_RASR_SIZE_Pos)) /*!< 2MB Size of the MPU protection region */
#define LL_MPU_REGION_SIZE_4MB ((uint32_t)(0x15U << MPU_RASR_SIZE_Pos)) /*!< 4MB Size of the MPU protection region */
#define LL_MPU_REGION_SIZE_8MB ((uint32_t)(0x16U << MPU_RASR_SIZE_Pos)) /*!< 8MB Size of the MPU protection region */
#define LL_MPU_REGION_SIZE_16MB ((uint32_t)(0x17U << MPU_RASR_SIZE_Pos)) /*!< 16MB Size of the MPU protection region */
#define LL_MPU_REGION_SIZE_32MB ((uint32_t)(0x18U << MPU_RASR_SIZE_Pos)) /*!< 32MB Size of the MPU protection region */
#define LL_MPU_REGION_SIZE_64MB ((uint32_t)(0x19U << MPU_RASR_SIZE_Pos)) /*!< 64MB Size of the MPU protection region */
#define LL_MPU_REGION_SIZE_128MB ((uint32_t)(0x1AU << MPU_RASR_SIZE_Pos)) /*!< 128MB Size of the MPU protection region */
#define LL_MPU_REGION_SIZE_256MB ((uint32_t)(0x1BU << MPU_RASR_SIZE_Pos)) /*!< 256MB Size of the MPU protection region */
#define LL_MPU_REGION_SIZE_512MB ((uint32_t)(0x1CU << MPU_RASR_SIZE_Pos)) /*!< 512MB Size of the MPU protection region */
#define LL_MPU_REGION_SIZE_1GB ((uint32_t)(0x1DU << MPU_RASR_SIZE_Pos)) /*!< 1GB Size of the MPU protection region */
#define LL_MPU_REGION_SIZE_2GB ((uint32_t)(0x1EU << MPU_RASR_SIZE_Pos)) /*!< 2GB Size of the MPU protection region */
#define LL_MPU_REGION_SIZE_4GB ((uint32_t)(0x1FU << MPU_RASR_SIZE_Pos)) /*!< 4GB Size of the MPU protection region */
/**
* @}
*/
/** @defgroup CORTEX_LL_EC_REGION_PRIVILEDGES MPU Region Privileges
* @{
*/
#define LL_MPU_REGION_NO_ACCESS ((uint32_t)(0x00U << MPU_RASR_AP_Pos)) /*!< No access*/
#define LL_MPU_REGION_PRIV_RW ((uint32_t)(0x01U << MPU_RASR_AP_Pos)) /*!< RW privileged (privileged access only)*/
#define LL_MPU_REGION_PRIV_RW_URO ((uint32_t)(0x02U << MPU_RASR_AP_Pos)) /*!< RW privileged - RO user (Write in a user program generates a fault) */
#define LL_MPU_REGION_FULL_ACCESS ((uint32_t)(0x03U << MPU_RASR_AP_Pos)) /*!< RW privileged & user (Full access) */
#define LL_MPU_REGION_PRIV_RO ((uint32_t)(0x05U << MPU_RASR_AP_Pos)) /*!< RO privileged (privileged read only)*/
#define LL_MPU_REGION_PRIV_RO_URO ((uint32_t)(0x06U << MPU_RASR_AP_Pos)) /*!< RO privileged & user (read only) */
/**
* @}
*/
/** @defgroup CORTEX_LL_EC_TEX MPU TEX Level
* @{
*/
#define LL_MPU_TEX_LEVEL0 ((uint32_t)(0x00U << MPU_RASR_TEX_Pos)) /*!< b000 for TEX bits */
#define LL_MPU_TEX_LEVEL1 ((uint32_t)(0x01U << MPU_RASR_TEX_Pos)) /*!< b001 for TEX bits */
#define LL_MPU_TEX_LEVEL2 ((uint32_t)(0x02U << MPU_RASR_TEX_Pos)) /*!< b010 for TEX bits */
#define LL_MPU_TEX_LEVEL4 ((uint32_t)(0x04U << MPU_RASR_TEX_Pos)) /*!< b100 for TEX bits */
/**
* @}
*/
/** @defgroup CORTEX_LL_EC_INSTRUCTION_ACCESS MPU Instruction Access
* @{
*/
#define LL_MPU_INSTRUCTION_ACCESS_ENABLE (0x00U) /*!< Instruction fetches enabled */
#define LL_MPU_INSTRUCTION_ACCESS_DISABLE MPU_RASR_XN_Msk /*!< Instruction fetches disabled*/
/**
* @}
*/
/** @defgroup CORTEX_LL_EC_SHAREABLE_ACCESS MPU Shareable Access
* @{
*/
#define LL_MPU_ACCESS_SHAREABLE MPU_RASR_S_Msk /*!< Shareable memory attribute */
#define LL_MPU_ACCESS_NOT_SHAREABLE (0x00U) /*!< Not Shareable memory attribute */
/**
* @}
*/
/** @defgroup CORTEX_LL_EC_CACHEABLE_ACCESS MPU Cacheable Access
* @{
*/
#define LL_MPU_ACCESS_CACHEABLE MPU_RASR_C_Msk /*!< Cacheable memory attribute */
#define LL_MPU_ACCESS_NOT_CACHEABLE (0x00U) /*!< Not Cacheable memory attribute */
/**
* @}
*/
/** @defgroup CORTEX_LL_EC_BUFFERABLE_ACCESS MPU Bufferable Access
* @{
*/
#define LL_MPU_ACCESS_BUFFERABLE MPU_RASR_B_Msk /*!< Bufferable memory attribute */
#define LL_MPU_ACCESS_NOT_BUFFERABLE (0x00U) /*!< Not Bufferable memory attribute */
/**
* @}
*/
#endif /* __MPU_PRESENT */
/**
* @}
*/
/* Exported macro ------------------------------------------------------------*/
/* Exported functions --------------------------------------------------------*/
/** @defgroup CORTEX_LL_Exported_Functions CORTEX Exported Functions
* @{
*/
/** @defgroup CORTEX_LL_EF_SYSTICK SYSTICK
* @{
*/
/**
* @brief This function checks if the Systick counter flag is active or not.
* @note It can be used in timeout function on application side.
* @rmtoll STK_CTRL COUNTFLAG LL_SYSTICK_IsActiveCounterFlag
* @retval State of bit (1 or 0).
*/
__STATIC_INLINE uint32_t LL_SYSTICK_IsActiveCounterFlag(void)
{
return ((SysTick->CTRL & SysTick_CTRL_COUNTFLAG_Msk) == (SysTick_CTRL_COUNTFLAG_Msk));
}
/**
* @brief Configures the SysTick clock source
* @rmtoll STK_CTRL CLKSOURCE LL_SYSTICK_SetClkSource
* @param Source This parameter can be one of the following values:
* @arg @ref LL_SYSTICK_CLKSOURCE_HCLK_DIV8
* @arg @ref LL_SYSTICK_CLKSOURCE_HCLK
* @retval None
*/
__STATIC_INLINE void LL_SYSTICK_SetClkSource(uint32_t Source)
{
if (Source == LL_SYSTICK_CLKSOURCE_HCLK)
{
SET_BIT(SysTick->CTRL, LL_SYSTICK_CLKSOURCE_HCLK);
}
else
{
CLEAR_BIT(SysTick->CTRL, LL_SYSTICK_CLKSOURCE_HCLK);
}
}
/**
* @brief Get the SysTick clock source
* @rmtoll STK_CTRL CLKSOURCE LL_SYSTICK_GetClkSource
* @retval Returned value can be one of the following values:
* @arg @ref LL_SYSTICK_CLKSOURCE_HCLK_DIV8
* @arg @ref LL_SYSTICK_CLKSOURCE_HCLK
*/
__STATIC_INLINE uint32_t LL_SYSTICK_GetClkSource(void)
{
return READ_BIT(SysTick->CTRL, LL_SYSTICK_CLKSOURCE_HCLK);
}
/**
* @brief Enable SysTick exception request
* @rmtoll STK_CTRL TICKINT LL_SYSTICK_EnableIT
* @retval None
*/
__STATIC_INLINE void LL_SYSTICK_EnableIT(void)
{
SET_BIT(SysTick->CTRL, SysTick_CTRL_TICKINT_Msk);
}
/**
* @brief Disable SysTick exception request
* @rmtoll STK_CTRL TICKINT LL_SYSTICK_DisableIT
* @retval None
*/
__STATIC_INLINE void LL_SYSTICK_DisableIT(void)
{
CLEAR_BIT(SysTick->CTRL, SysTick_CTRL_TICKINT_Msk);
}
/**
* @brief Checks if the SYSTICK interrupt is enabled or disabled.
* @rmtoll STK_CTRL TICKINT LL_SYSTICK_IsEnabledIT
* @retval State of bit (1 or 0).
*/
__STATIC_INLINE uint32_t LL_SYSTICK_IsEnabledIT(void)
{
return (READ_BIT(SysTick->CTRL, SysTick_CTRL_TICKINT_Msk) == (SysTick_CTRL_TICKINT_Msk));
}
/**
* @}
*/
/** @defgroup CORTEX_LL_EF_LOW_POWER_MODE LOW POWER MODE
* @{
*/
/**
* @brief Processor uses sleep as its low power mode
* @rmtoll SCB_SCR SLEEPDEEP LL_LPM_EnableSleep
* @retval None
*/
__STATIC_INLINE void LL_LPM_EnableSleep(void)
{
/* Clear SLEEPDEEP bit of Cortex System Control Register */
CLEAR_BIT(SCB->SCR, ((uint32_t)SCB_SCR_SLEEPDEEP_Msk));
}
/**
* @brief Processor uses deep sleep as its low power mode
* @rmtoll SCB_SCR SLEEPDEEP LL_LPM_EnableDeepSleep
* @retval None
*/
__STATIC_INLINE void LL_LPM_EnableDeepSleep(void)
{
/* Set SLEEPDEEP bit of Cortex System Control Register */
SET_BIT(SCB->SCR, ((uint32_t)SCB_SCR_SLEEPDEEP_Msk));
}
/**
* @brief Configures sleep-on-exit when returning from Handler mode to Thread mode.
* @note Setting this bit to 1 enables an interrupt-driven application to avoid returning to an
* empty main application.
* @rmtoll SCB_SCR SLEEPONEXIT LL_LPM_EnableSleepOnExit
* @retval None
*/
__STATIC_INLINE void LL_LPM_EnableSleepOnExit(void)
{
/* Set SLEEPONEXIT bit of Cortex System Control Register */
SET_BIT(SCB->SCR, ((uint32_t)SCB_SCR_SLEEPONEXIT_Msk));
}
/**
* @brief Do not sleep when returning to Thread mode.
* @rmtoll SCB_SCR SLEEPONEXIT LL_LPM_DisableSleepOnExit
* @retval None
*/
__STATIC_INLINE void LL_LPM_DisableSleepOnExit(void)
{
/* Clear SLEEPONEXIT bit of Cortex System Control Register */
CLEAR_BIT(SCB->SCR, ((uint32_t)SCB_SCR_SLEEPONEXIT_Msk));
}
/**
* @brief Enabled events and all interrupts, including disabled interrupts, can wakeup the
* processor.
* @rmtoll SCB_SCR SEVEONPEND LL_LPM_EnableEventOnPend
* @retval None
*/
__STATIC_INLINE void LL_LPM_EnableEventOnPend(void)
{
/* Set SEVEONPEND bit of Cortex System Control Register */
SET_BIT(SCB->SCR, ((uint32_t)SCB_SCR_SEVONPEND_Msk));
}
/**
* @brief Only enabled interrupts or events can wakeup the processor, disabled interrupts are
* excluded
* @rmtoll SCB_SCR SEVEONPEND LL_LPM_DisableEventOnPend
* @retval None
*/
__STATIC_INLINE void LL_LPM_DisableEventOnPend(void)
{
/* Clear SEVEONPEND bit of Cortex System Control Register */
CLEAR_BIT(SCB->SCR, ((uint32_t)SCB_SCR_SEVONPEND_Msk));
}
/**
* @}
*/
/** @defgroup CORTEX_LL_EF_MCU_INFO MCU INFO
* @{
*/
/**
* @brief Get Implementer code
* @rmtoll SCB_CPUID IMPLEMENTER LL_CPUID_GetImplementer
* @retval Value should be equal to 0x41 for ARM
*/
__STATIC_INLINE uint32_t LL_CPUID_GetImplementer(void)
{
return (uint32_t)(READ_BIT(SCB->CPUID, SCB_CPUID_IMPLEMENTER_Msk) >> SCB_CPUID_IMPLEMENTER_Pos);
}
/**
* @brief Get Variant number (The r value in the rnpn product revision identifier)
* @rmtoll SCB_CPUID VARIANT LL_CPUID_GetVariant
* @retval Value between 0 and 255 (0x0: revision 0)
*/
__STATIC_INLINE uint32_t LL_CPUID_GetVariant(void)
{
return (uint32_t)(READ_BIT(SCB->CPUID, SCB_CPUID_VARIANT_Msk) >> SCB_CPUID_VARIANT_Pos);
}
/**
* @brief Get Architecture number
* @rmtoll SCB_CPUID ARCHITECTURE LL_CPUID_GetArchitecture
* @retval Value should be equal to 0xC for Cortex-M0+ devices
*/
__STATIC_INLINE uint32_t LL_CPUID_GetArchitecture(void)
{
return (uint32_t)(READ_BIT(SCB->CPUID, SCB_CPUID_ARCHITECTURE_Msk) >> SCB_CPUID_ARCHITECTURE_Pos);
}
/**
* @brief Get Part number
* @rmtoll SCB_CPUID PARTNO LL_CPUID_GetParNo
* @retval Value should be equal to 0xC60 for Cortex-M0+
*/
__STATIC_INLINE uint32_t LL_CPUID_GetParNo(void)
{
return (uint32_t)(READ_BIT(SCB->CPUID, SCB_CPUID_PARTNO_Msk) >> SCB_CPUID_PARTNO_Pos);
}
/**
* @brief Get Revision number (The p value in the rnpn product revision identifier, indicates patch release)
* @rmtoll SCB_CPUID REVISION LL_CPUID_GetRevision
* @retval Value between 0 and 255 (0x1: patch 1)
*/
__STATIC_INLINE uint32_t LL_CPUID_GetRevision(void)
{
return (uint32_t)(READ_BIT(SCB->CPUID, SCB_CPUID_REVISION_Msk) >> SCB_CPUID_REVISION_Pos);
}
/**
* @}
*/
#if __MPU_PRESENT
/** @defgroup CORTEX_LL_EF_MPU MPU
* @{
*/
/**
* @brief Enable MPU with input options
* @rmtoll MPU_CTRL ENABLE LL_MPU_Enable
* @param Options This parameter can be one of the following values:
* @arg @ref LL_MPU_CTRL_HFNMI_PRIVDEF_NONE
* @arg @ref LL_MPU_CTRL_HARDFAULT_NMI
* @arg @ref LL_MPU_CTRL_PRIVILEGED_DEFAULT
* @arg @ref LL_MPU_CTRL_HFNMI_PRIVDEF
* @retval None
*/
__STATIC_INLINE void LL_MPU_Enable(uint32_t Options)
{
/* Enable the MPU*/
WRITE_REG(MPU->CTRL, (MPU_CTRL_ENABLE_Msk | Options));
/* Ensure MPU settings take effects */
__DSB();
/* Sequence instruction fetches using update settings */
__ISB();
}
/**
* @brief Disable MPU
* @rmtoll MPU_CTRL ENABLE LL_MPU_Disable
* @retval None
*/
__STATIC_INLINE void LL_MPU_Disable(void)
{
/* Make sure outstanding transfers are done */
__DMB();
/* Disable MPU*/
WRITE_REG(MPU->CTRL, 0U);
}
/**
* @brief Check if MPU is enabled or not
* @rmtoll MPU_CTRL ENABLE LL_MPU_IsEnabled
* @retval State of bit (1 or 0).
*/
__STATIC_INLINE uint32_t LL_MPU_IsEnabled(void)
{
return (READ_BIT(MPU->CTRL, MPU_CTRL_ENABLE_Msk) == (MPU_CTRL_ENABLE_Msk));
}
/**
* @brief Enable a MPU region
* @rmtoll MPU_RASR ENABLE LL_MPU_EnableRegion
* @param Region This parameter can be one of the following values:
* @arg @ref LL_MPU_REGION_NUMBER0
* @arg @ref LL_MPU_REGION_NUMBER1
* @arg @ref LL_MPU_REGION_NUMBER2
* @arg @ref LL_MPU_REGION_NUMBER3
* @arg @ref LL_MPU_REGION_NUMBER4
* @arg @ref LL_MPU_REGION_NUMBER5
* @arg @ref LL_MPU_REGION_NUMBER6
* @arg @ref LL_MPU_REGION_NUMBER7
* @retval None
*/
__STATIC_INLINE void LL_MPU_EnableRegion(uint32_t Region)
{
/* Set Region number */
WRITE_REG(MPU->RNR, Region);
/* Enable the MPU region */
SET_BIT(MPU->RASR, MPU_RASR_ENABLE_Msk);
}
/**
* @brief Configure and enable a region
* @rmtoll MPU_RNR REGION LL_MPU_ConfigRegion\n
* MPU_RBAR REGION LL_MPU_ConfigRegion\n
* MPU_RBAR ADDR LL_MPU_ConfigRegion\n
* MPU_RASR XN LL_MPU_ConfigRegion\n
* MPU_RASR AP LL_MPU_ConfigRegion\n
* MPU_RASR S LL_MPU_ConfigRegion\n
* MPU_RASR C LL_MPU_ConfigRegion\n
* MPU_RASR B LL_MPU_ConfigRegion\n
* MPU_RASR SIZE LL_MPU_ConfigRegion
* @param Region This parameter can be one of the following values:
* @arg @ref LL_MPU_REGION_NUMBER0
* @arg @ref LL_MPU_REGION_NUMBER1
* @arg @ref LL_MPU_REGION_NUMBER2
* @arg @ref LL_MPU_REGION_NUMBER3
* @arg @ref LL_MPU_REGION_NUMBER4
* @arg @ref LL_MPU_REGION_NUMBER5
* @arg @ref LL_MPU_REGION_NUMBER6
* @arg @ref LL_MPU_REGION_NUMBER7
* @param Address Value of region base address
* @param SubRegionDisable Sub-region disable value between Min_Data = 0x00 and Max_Data = 0xFF
* @param Attributes This parameter can be a combination of the following values:
* @arg @ref LL_MPU_REGION_SIZE_32B or @ref LL_MPU_REGION_SIZE_64B or @ref LL_MPU_REGION_SIZE_128B or @ref LL_MPU_REGION_SIZE_256B or @ref LL_MPU_REGION_SIZE_512B
* or @ref LL_MPU_REGION_SIZE_1KB or @ref LL_MPU_REGION_SIZE_2KB or @ref LL_MPU_REGION_SIZE_4KB or @ref LL_MPU_REGION_SIZE_8KB or @ref LL_MPU_REGION_SIZE_16KB
* or @ref LL_MPU_REGION_SIZE_32KB or @ref LL_MPU_REGION_SIZE_64KB or @ref LL_MPU_REGION_SIZE_128KB or @ref LL_MPU_REGION_SIZE_256KB or @ref LL_MPU_REGION_SIZE_512KB
* or @ref LL_MPU_REGION_SIZE_1MB or @ref LL_MPU_REGION_SIZE_2MB or @ref LL_MPU_REGION_SIZE_4MB or @ref LL_MPU_REGION_SIZE_8MB or @ref LL_MPU_REGION_SIZE_16MB
* or @ref LL_MPU_REGION_SIZE_32MB or @ref LL_MPU_REGION_SIZE_64MB or @ref LL_MPU_REGION_SIZE_128MB or @ref LL_MPU_REGION_SIZE_256MB or @ref LL_MPU_REGION_SIZE_512MB
* or @ref LL_MPU_REGION_SIZE_1GB or @ref LL_MPU_REGION_SIZE_2GB or @ref LL_MPU_REGION_SIZE_4GB
* @arg @ref LL_MPU_REGION_NO_ACCESS or @ref LL_MPU_REGION_PRIV_RW or @ref LL_MPU_REGION_PRIV_RW_URO or @ref LL_MPU_REGION_FULL_ACCESS
* or @ref LL_MPU_REGION_PRIV_RO or @ref LL_MPU_REGION_PRIV_RO_URO
* @arg @ref LL_MPU_TEX_LEVEL0 or @ref LL_MPU_TEX_LEVEL1 or @ref LL_MPU_TEX_LEVEL2 or @ref LL_MPU_TEX_LEVEL4
* @arg @ref LL_MPU_INSTRUCTION_ACCESS_ENABLE or @ref LL_MPU_INSTRUCTION_ACCESS_DISABLE
* @arg @ref LL_MPU_ACCESS_SHAREABLE or @ref LL_MPU_ACCESS_NOT_SHAREABLE
* @arg @ref LL_MPU_ACCESS_CACHEABLE or @ref LL_MPU_ACCESS_NOT_CACHEABLE
* @arg @ref LL_MPU_ACCESS_BUFFERABLE or @ref LL_MPU_ACCESS_NOT_BUFFERABLE
* @retval None
*/
__STATIC_INLINE void LL_MPU_ConfigRegion(uint32_t Region, uint32_t SubRegionDisable, uint32_t Address, uint32_t Attributes)
{
/* Set Region number */
WRITE_REG(MPU->RNR, Region);
/* Set base address */
WRITE_REG(MPU->RBAR, (Address & 0xFFFFFFE0U));
/* Configure MPU */
WRITE_REG(MPU->RASR, (MPU_RASR_ENABLE_Msk | Attributes | SubRegionDisable << MPU_RASR_SRD_Pos));
}
/**
* @brief Disable a region
* @rmtoll MPU_RNR REGION LL_MPU_DisableRegion\n
* MPU_RASR ENABLE LL_MPU_DisableRegion
* @param Region This parameter can be one of the following values:
* @arg @ref LL_MPU_REGION_NUMBER0
* @arg @ref LL_MPU_REGION_NUMBER1
* @arg @ref LL_MPU_REGION_NUMBER2
* @arg @ref LL_MPU_REGION_NUMBER3
* @arg @ref LL_MPU_REGION_NUMBER4
* @arg @ref LL_MPU_REGION_NUMBER5
* @arg @ref LL_MPU_REGION_NUMBER6
* @arg @ref LL_MPU_REGION_NUMBER7
* @retval None
*/
__STATIC_INLINE void LL_MPU_DisableRegion(uint32_t Region)
{
/* Set Region number */
WRITE_REG(MPU->RNR, Region);
/* Disable the MPU region */
CLEAR_BIT(MPU->RASR, MPU_RASR_ENABLE_Msk);
}
/**
* @}
*/
#endif /* __MPU_PRESENT */
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
#ifdef __cplusplus
}
#endif
#endif /* __STM32L0xx_LL_CORTEX_H */
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

798
fw/Drivers/STM32L0xx_HAL_Driver/Inc/stm32l0xx_ll_crs.h Normal file
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@@ -0,0 +1,798 @@
/**
******************************************************************************
* @file stm32l0xx_ll_crs.h
* @author MCD Application Team
* @brief Header file of CRS LL module.
******************************************************************************
* @attention
*
* <h2><center>&copy; Copyright(c) 2016 STMicroelectronics.
* All rights reserved.</center></h2>
*
* This software component is licensed by ST under BSD 3-Clause license,
* the "License"; You may not use this file except in compliance with the
* License. You may obtain a copy of the License at:
* opensource.org/licenses/BSD-3-Clause
*
******************************************************************************
*/
/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __STM32L0xx_LL_CRS_H
#define __STM32L0xx_LL_CRS_H
#ifdef __cplusplus
extern "C" {
#endif
/* Includes ------------------------------------------------------------------*/
#include "stm32l0xx.h"
/** @addtogroup STM32L0xx_LL_Driver
* @{
*/
#if defined(CRS)
/** @defgroup CRS_LL CRS
* @{
*/
/* Private types -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private constants ---------------------------------------------------------*/
/** @defgroup CRS_LL_Private_Constants CRS Private Constants
* @{
*/
/* Defines used for the bit position in the register and perform offsets*/
#define CRS_POSITION_TRIM (CRS_CR_TRIM_Pos) /* bit position in CR reg */
#define CRS_POSITION_FECAP (CRS_ISR_FECAP_Pos) /* bit position in ISR reg */
#define CRS_POSITION_FELIM (CRS_CFGR_FELIM_Pos) /* bit position in CFGR reg */
/**
* @}
*/
/* Private macros ------------------------------------------------------------*/
/* Exported types ------------------------------------------------------------*/
/* Exported constants --------------------------------------------------------*/
/** @defgroup CRS_LL_Exported_Constants CRS Exported Constants
* @{
*/
/** @defgroup CRS_LL_EC_GET_FLAG Get Flags Defines
* @brief Flags defines which can be used with LL_CRS_ReadReg function
* @{
*/
#define LL_CRS_ISR_SYNCOKF CRS_ISR_SYNCOKF
#define LL_CRS_ISR_SYNCWARNF CRS_ISR_SYNCWARNF
#define LL_CRS_ISR_ERRF CRS_ISR_ERRF
#define LL_CRS_ISR_ESYNCF CRS_ISR_ESYNCF
#define LL_CRS_ISR_SYNCERR CRS_ISR_SYNCERR
#define LL_CRS_ISR_SYNCMISS CRS_ISR_SYNCMISS
#define LL_CRS_ISR_TRIMOVF CRS_ISR_TRIMOVF
/**
* @}
*/
/** @defgroup CRS_LL_EC_IT IT Defines
* @brief IT defines which can be used with LL_CRS_ReadReg and LL_CRS_WriteReg functions
* @{
*/
#define LL_CRS_CR_SYNCOKIE CRS_CR_SYNCOKIE
#define LL_CRS_CR_SYNCWARNIE CRS_CR_SYNCWARNIE
#define LL_CRS_CR_ERRIE CRS_CR_ERRIE
#define LL_CRS_CR_ESYNCIE CRS_CR_ESYNCIE
/**
* @}
*/
/** @defgroup CRS_LL_EC_SYNC_DIV Synchronization Signal Divider
* @{
*/
#define LL_CRS_SYNC_DIV_1 (0x00U) /*!< Synchro Signal not divided (default) */
#define LL_CRS_SYNC_DIV_2 CRS_CFGR_SYNCDIV_0 /*!< Synchro Signal divided by 2 */
#define LL_CRS_SYNC_DIV_4 CRS_CFGR_SYNCDIV_1 /*!< Synchro Signal divided by 4 */
#define LL_CRS_SYNC_DIV_8 (CRS_CFGR_SYNCDIV_1 | CRS_CFGR_SYNCDIV_0) /*!< Synchro Signal divided by 8 */
#define LL_CRS_SYNC_DIV_16 CRS_CFGR_SYNCDIV_2 /*!< Synchro Signal divided by 16 */
#define LL_CRS_SYNC_DIV_32 (CRS_CFGR_SYNCDIV_2 | CRS_CFGR_SYNCDIV_0) /*!< Synchro Signal divided by 32 */
#define LL_CRS_SYNC_DIV_64 (CRS_CFGR_SYNCDIV_2 | CRS_CFGR_SYNCDIV_1) /*!< Synchro Signal divided by 64 */
#define LL_CRS_SYNC_DIV_128 CRS_CFGR_SYNCDIV /*!< Synchro Signal divided by 128 */
/**
* @}
*/
/** @defgroup CRS_LL_EC_SYNC_SOURCE Synchronization Signal Source
* @{
*/
#define LL_CRS_SYNC_SOURCE_GPIO (0x00U) /*!< Synchro Signal soucre GPIO */
#define LL_CRS_SYNC_SOURCE_LSE CRS_CFGR_SYNCSRC_0 /*!< Synchro Signal source LSE */
#define LL_CRS_SYNC_SOURCE_USB CRS_CFGR_SYNCSRC_1 /*!< Synchro Signal source USB SOF (default)*/
/**
* @}
*/
/** @defgroup CRS_LL_EC_SYNC_POLARITY Synchronization Signal Polarity
* @{
*/
#define LL_CRS_SYNC_POLARITY_RISING (0x00U) /*!< Synchro Active on rising edge (default) */
#define LL_CRS_SYNC_POLARITY_FALLING CRS_CFGR_SYNCPOL /*!< Synchro Active on falling edge */
/**
* @}
*/
/** @defgroup CRS_LL_EC_FREQERRORDIR Frequency Error Direction
* @{
*/
#define LL_CRS_FREQ_ERROR_DIR_UP (0x00U) /*!< Upcounting direction, the actual frequency is above the target */
#define LL_CRS_FREQ_ERROR_DIR_DOWN CRS_ISR_FEDIR /*!< Downcounting direction, the actual frequency is below the target */
/**
* @}
*/
/** @defgroup CRS_LL_EC_DEFAULTVALUES Default Values
* @{
*/
/**
* @brief Reset value of the RELOAD field
* @note The reset value of the RELOAD field corresponds to a target frequency of 48 MHz
* and a synchronization signal frequency of 1 kHz (SOF signal from USB)
*/
#define LL_CRS_RELOADVALUE_DEFAULT (0xBB7FU)
/**
* @brief Reset value of Frequency error limit.
*/
#define LL_CRS_ERRORLIMIT_DEFAULT (0x22U)
/**
* @brief Reset value of the HSI48 Calibration field
* @note The default value is 32, which corresponds to the middle of the trimming interval.
* The trimming step is around 67 kHz between two consecutive TRIM steps.
* A higher TRIM value corresponds to a higher output frequency
*/
#define LL_CRS_HSI48CALIBRATION_DEFAULT (0x20U)
/**
* @}
*/
/**
* @}
*/
/* Exported macro ------------------------------------------------------------*/
/** @defgroup CRS_LL_Exported_Macros CRS Exported Macros
* @{
*/
/** @defgroup CRS_LL_EM_WRITE_READ Common Write and read registers Macros
* @{
*/
/**
* @brief Write a value in CRS register
* @param __INSTANCE__ CRS Instance
* @param __REG__ Register to be written
* @param __VALUE__ Value to be written in the register
* @retval None
*/
#define LL_CRS_WriteReg(__INSTANCE__, __REG__, __VALUE__) WRITE_REG(__INSTANCE__->__REG__, (__VALUE__))
/**
* @brief Read a value in CRS register
* @param __INSTANCE__ CRS Instance
* @param __REG__ Register to be read
* @retval Register value
*/
#define LL_CRS_ReadReg(__INSTANCE__, __REG__) READ_REG(__INSTANCE__->__REG__)
/**
* @}
*/
/** @defgroup CRS_LL_EM_Exported_Macros_Calculate_Reload Exported_Macros_Calculate_Reload
* @{
*/
/**
* @brief Macro to calculate reload value to be set in CRS register according to target and sync frequencies
* @note The RELOAD value should be selected according to the ratio between
* the target frequency and the frequency of the synchronization source after
* prescaling. It is then decreased by one in order to reach the expected
* synchronization on the zero value. The formula is the following:
* RELOAD = (fTARGET / fSYNC) -1
* @param __FTARGET__ Target frequency (value in Hz)
* @param __FSYNC__ Synchronization signal frequency (value in Hz)
* @retval Reload value (in Hz)
*/
#define __LL_CRS_CALC_CALCULATE_RELOADVALUE(__FTARGET__, __FSYNC__) (((__FTARGET__) / (__FSYNC__)) - 1U)
/**
* @}
*/
/**
* @}
*/
/* Exported functions --------------------------------------------------------*/
/** @defgroup CRS_LL_Exported_Functions CRS Exported Functions
* @{
*/
/** @defgroup CRS_LL_EF_Configuration Configuration
* @{
*/
/**
* @brief Enable Frequency error counter
* @note When this bit is set, the CRS_CFGR register is write-protected and cannot be modified
* @rmtoll CR CEN LL_CRS_EnableFreqErrorCounter
* @retval None
*/
__STATIC_INLINE void LL_CRS_EnableFreqErrorCounter(void)
{
SET_BIT(CRS->CR, CRS_CR_CEN);
}
/**
* @brief Disable Frequency error counter
* @rmtoll CR CEN LL_CRS_DisableFreqErrorCounter
* @retval None
*/
__STATIC_INLINE void LL_CRS_DisableFreqErrorCounter(void)
{
CLEAR_BIT(CRS->CR, CRS_CR_CEN);
}
/**
* @brief Check if Frequency error counter is enabled or not
* @rmtoll CR CEN LL_CRS_IsEnabledFreqErrorCounter
* @retval State of bit (1 or 0).
*/
__STATIC_INLINE uint32_t LL_CRS_IsEnabledFreqErrorCounter(void)
{
return (READ_BIT(CRS->CR, CRS_CR_CEN) == (CRS_CR_CEN));
}
/**
* @brief Enable Automatic trimming counter
* @rmtoll CR AUTOTRIMEN LL_CRS_EnableAutoTrimming
* @retval None
*/
__STATIC_INLINE void LL_CRS_EnableAutoTrimming(void)
{
SET_BIT(CRS->CR, CRS_CR_AUTOTRIMEN);
}
/**
* @brief Disable Automatic trimming counter
* @rmtoll CR AUTOTRIMEN LL_CRS_DisableAutoTrimming
* @retval None
*/
__STATIC_INLINE void LL_CRS_DisableAutoTrimming(void)
{
CLEAR_BIT(CRS->CR, CRS_CR_AUTOTRIMEN);
}
/**
* @brief Check if Automatic trimming is enabled or not
* @rmtoll CR AUTOTRIMEN LL_CRS_IsEnabledAutoTrimming
* @retval State of bit (1 or 0).
*/
__STATIC_INLINE uint32_t LL_CRS_IsEnabledAutoTrimming(void)
{
return (READ_BIT(CRS->CR, CRS_CR_AUTOTRIMEN) == (CRS_CR_AUTOTRIMEN));
}
/**
* @brief Set HSI48 oscillator smooth trimming
* @note When the AUTOTRIMEN bit is set, this field is controlled by hardware and is read-only
* @rmtoll CR TRIM LL_CRS_SetHSI48SmoothTrimming
* @param Value a number between Min_Data = 0 and Max_Data = 63
* @note Default value can be set thanks to @ref LL_CRS_HSI48CALIBRATION_DEFAULT
* @retval None
*/
__STATIC_INLINE void LL_CRS_SetHSI48SmoothTrimming(uint32_t Value)
{
MODIFY_REG(CRS->CR, CRS_CR_TRIM, Value << CRS_POSITION_TRIM);
}
/**
* @brief Get HSI48 oscillator smooth trimming
* @rmtoll CR TRIM LL_CRS_GetHSI48SmoothTrimming
* @retval a number between Min_Data = 0 and Max_Data = 63
*/
__STATIC_INLINE uint32_t LL_CRS_GetHSI48SmoothTrimming(void)
{
return (uint32_t)(READ_BIT(CRS->CR, CRS_CR_TRIM) >> CRS_POSITION_TRIM);
}
/**
* @brief Set counter reload value
* @rmtoll CFGR RELOAD LL_CRS_SetReloadCounter
* @param Value a number between Min_Data = 0 and Max_Data = 0xFFFF
* @note Default value can be set thanks to @ref LL_CRS_RELOADVALUE_DEFAULT
* Otherwise it can be calculated in using macro @ref __LL_CRS_CALC_CALCULATE_RELOADVALUE (_FTARGET_, _FSYNC_)
* @retval None
*/
__STATIC_INLINE void LL_CRS_SetReloadCounter(uint32_t Value)
{
MODIFY_REG(CRS->CFGR, CRS_CFGR_RELOAD, Value);
}
/**
* @brief Get counter reload value
* @rmtoll CFGR RELOAD LL_CRS_GetReloadCounter
* @retval a number between Min_Data = 0 and Max_Data = 0xFFFF
*/
__STATIC_INLINE uint32_t LL_CRS_GetReloadCounter(void)
{
return (uint32_t)(READ_BIT(CRS->CFGR, CRS_CFGR_RELOAD));
}
/**
* @brief Set frequency error limit
* @rmtoll CFGR FELIM LL_CRS_SetFreqErrorLimit
* @param Value a number between Min_Data = 0 and Max_Data = 255
* @note Default value can be set thanks to @ref LL_CRS_ERRORLIMIT_DEFAULT
* @retval None
*/
__STATIC_INLINE void LL_CRS_SetFreqErrorLimit(uint32_t Value)
{
MODIFY_REG(CRS->CFGR, CRS_CFGR_FELIM, Value << CRS_POSITION_FELIM);
}
/**
* @brief Get frequency error limit
* @rmtoll CFGR FELIM LL_CRS_GetFreqErrorLimit
* @retval A number between Min_Data = 0 and Max_Data = 255
*/
__STATIC_INLINE uint32_t LL_CRS_GetFreqErrorLimit(void)
{
return (uint32_t)(READ_BIT(CRS->CFGR, CRS_CFGR_FELIM) >> CRS_POSITION_FELIM);
}
/**
* @brief Set division factor for SYNC signal
* @rmtoll CFGR SYNCDIV LL_CRS_SetSyncDivider
* @param Divider This parameter can be one of the following values:
* @arg @ref LL_CRS_SYNC_DIV_1
* @arg @ref LL_CRS_SYNC_DIV_2
* @arg @ref LL_CRS_SYNC_DIV_4
* @arg @ref LL_CRS_SYNC_DIV_8
* @arg @ref LL_CRS_SYNC_DIV_16
* @arg @ref LL_CRS_SYNC_DIV_32
* @arg @ref LL_CRS_SYNC_DIV_64
* @arg @ref LL_CRS_SYNC_DIV_128
* @retval None
*/
__STATIC_INLINE void LL_CRS_SetSyncDivider(uint32_t Divider)
{
MODIFY_REG(CRS->CFGR, CRS_CFGR_SYNCDIV, Divider);
}
/**
* @brief Get division factor for SYNC signal
* @rmtoll CFGR SYNCDIV LL_CRS_GetSyncDivider
* @retval Returned value can be one of the following values:
* @arg @ref LL_CRS_SYNC_DIV_1
* @arg @ref LL_CRS_SYNC_DIV_2
* @arg @ref LL_CRS_SYNC_DIV_4
* @arg @ref LL_CRS_SYNC_DIV_8
* @arg @ref LL_CRS_SYNC_DIV_16
* @arg @ref LL_CRS_SYNC_DIV_32
* @arg @ref LL_CRS_SYNC_DIV_64
* @arg @ref LL_CRS_SYNC_DIV_128
*/
__STATIC_INLINE uint32_t LL_CRS_GetSyncDivider(void)
{
return (uint32_t)(READ_BIT(CRS->CFGR, CRS_CFGR_SYNCDIV));
}
/**
* @brief Set SYNC signal source
* @rmtoll CFGR SYNCSRC LL_CRS_SetSyncSignalSource
* @param Source This parameter can be one of the following values:
* @arg @ref LL_CRS_SYNC_SOURCE_GPIO
* @arg @ref LL_CRS_SYNC_SOURCE_LSE
* @arg @ref LL_CRS_SYNC_SOURCE_USB
* @retval None
*/
__STATIC_INLINE void LL_CRS_SetSyncSignalSource(uint32_t Source)
{
MODIFY_REG(CRS->CFGR, CRS_CFGR_SYNCSRC, Source);
}
/**
* @brief Get SYNC signal source
* @rmtoll CFGR SYNCSRC LL_CRS_GetSyncSignalSource
* @retval Returned value can be one of the following values:
* @arg @ref LL_CRS_SYNC_SOURCE_GPIO
* @arg @ref LL_CRS_SYNC_SOURCE_LSE
* @arg @ref LL_CRS_SYNC_SOURCE_USB
*/
__STATIC_INLINE uint32_t LL_CRS_GetSyncSignalSource(void)
{
return (uint32_t)(READ_BIT(CRS->CFGR, CRS_CFGR_SYNCSRC));
}
/**
* @brief Set input polarity for the SYNC signal source
* @rmtoll CFGR SYNCPOL LL_CRS_SetSyncPolarity
* @param Polarity This parameter can be one of the following values:
* @arg @ref LL_CRS_SYNC_POLARITY_RISING
* @arg @ref LL_CRS_SYNC_POLARITY_FALLING
* @retval None
*/
__STATIC_INLINE void LL_CRS_SetSyncPolarity(uint32_t Polarity)
{
MODIFY_REG(CRS->CFGR, CRS_CFGR_SYNCPOL, Polarity);
}
/**
* @brief Get input polarity for the SYNC signal source
* @rmtoll CFGR SYNCPOL LL_CRS_GetSyncPolarity
* @retval Returned value can be one of the following values:
* @arg @ref LL_CRS_SYNC_POLARITY_RISING
* @arg @ref LL_CRS_SYNC_POLARITY_FALLING
*/
__STATIC_INLINE uint32_t LL_CRS_GetSyncPolarity(void)
{
return (uint32_t)(READ_BIT(CRS->CFGR, CRS_CFGR_SYNCPOL));
}
/**
* @brief Configure CRS for the synchronization
* @rmtoll CR TRIM LL_CRS_ConfigSynchronization\n
* CFGR RELOAD LL_CRS_ConfigSynchronization\n
* CFGR FELIM LL_CRS_ConfigSynchronization\n
* CFGR SYNCDIV LL_CRS_ConfigSynchronization\n
* CFGR SYNCSRC LL_CRS_ConfigSynchronization\n
* CFGR SYNCPOL LL_CRS_ConfigSynchronization
* @param HSI48CalibrationValue a number between Min_Data = 0 and Max_Data = 63
* @param ErrorLimitValue a number between Min_Data = 0 and Max_Data = 0xFFFF
* @param ReloadValue a number between Min_Data = 0 and Max_Data = 255
* @param Settings This parameter can be a combination of the following values:
* @arg @ref LL_CRS_SYNC_DIV_1 or @ref LL_CRS_SYNC_DIV_2 or @ref LL_CRS_SYNC_DIV_4 or @ref LL_CRS_SYNC_DIV_8
* or @ref LL_CRS_SYNC_DIV_16 or @ref LL_CRS_SYNC_DIV_32 or @ref LL_CRS_SYNC_DIV_64 or @ref LL_CRS_SYNC_DIV_128
* @arg @ref LL_CRS_SYNC_SOURCE_GPIO or @ref LL_CRS_SYNC_SOURCE_LSE or @ref LL_CRS_SYNC_SOURCE_USB
* @arg @ref LL_CRS_SYNC_POLARITY_RISING or @ref LL_CRS_SYNC_POLARITY_FALLING
* @retval None
*/
__STATIC_INLINE void LL_CRS_ConfigSynchronization(uint32_t HSI48CalibrationValue, uint32_t ErrorLimitValue, uint32_t ReloadValue, uint32_t Settings)
{
MODIFY_REG(CRS->CR, CRS_CR_TRIM, HSI48CalibrationValue);
MODIFY_REG(CRS->CFGR,
CRS_CFGR_RELOAD | CRS_CFGR_FELIM | CRS_CFGR_SYNCDIV | CRS_CFGR_SYNCSRC | CRS_CFGR_SYNCPOL,
ReloadValue | (ErrorLimitValue << CRS_POSITION_FELIM) | Settings);
}
/**
* @}
*/
/** @defgroup CRS_LL_EF_CRS_Management CRS_Management
* @{
*/
/**
* @brief Generate software SYNC event
* @rmtoll CR SWSYNC LL_CRS_GenerateEvent_SWSYNC
* @retval None
*/
__STATIC_INLINE void LL_CRS_GenerateEvent_SWSYNC(void)
{
SET_BIT(CRS->CR, CRS_CR_SWSYNC);
}
/**
* @brief Get the frequency error direction latched in the time of the last
* SYNC event
* @rmtoll ISR FEDIR LL_CRS_GetFreqErrorDirection
* @retval Returned value can be one of the following values:
* @arg @ref LL_CRS_FREQ_ERROR_DIR_UP
* @arg @ref LL_CRS_FREQ_ERROR_DIR_DOWN
*/
__STATIC_INLINE uint32_t LL_CRS_GetFreqErrorDirection(void)
{
return (uint32_t)(READ_BIT(CRS->ISR, CRS_ISR_FEDIR));
}
/**
* @brief Get the frequency error counter value latched in the time of the last SYNC event
* @rmtoll ISR FECAP LL_CRS_GetFreqErrorCapture
* @retval A number between Min_Data = 0x0000 and Max_Data = 0xFFFF
*/
__STATIC_INLINE uint32_t LL_CRS_GetFreqErrorCapture(void)
{
return (uint32_t)(READ_BIT(CRS->ISR, CRS_ISR_FECAP) >> CRS_POSITION_FECAP);
}
/**
* @}
*/
/** @defgroup CRS_LL_EF_FLAG_Management FLAG_Management
* @{
*/
/**
* @brief Check if SYNC event OK signal occurred or not
* @rmtoll ISR SYNCOKF LL_CRS_IsActiveFlag_SYNCOK
* @retval State of bit (1 or 0).
*/
__STATIC_INLINE uint32_t LL_CRS_IsActiveFlag_SYNCOK(void)
{
return (READ_BIT(CRS->ISR, CRS_ISR_SYNCOKF) == (CRS_ISR_SYNCOKF));
}
/**
* @brief Check if SYNC warning signal occurred or not
* @rmtoll ISR SYNCWARNF LL_CRS_IsActiveFlag_SYNCWARN
* @retval State of bit (1 or 0).
*/
__STATIC_INLINE uint32_t LL_CRS_IsActiveFlag_SYNCWARN(void)
{
return (READ_BIT(CRS->ISR, CRS_ISR_SYNCWARNF) == (CRS_ISR_SYNCWARNF));
}
/**
* @brief Check if Synchronization or trimming error signal occurred or not
* @rmtoll ISR ERRF LL_CRS_IsActiveFlag_ERR
* @retval State of bit (1 or 0).
*/
__STATIC_INLINE uint32_t LL_CRS_IsActiveFlag_ERR(void)
{
return (READ_BIT(CRS->ISR, CRS_ISR_ERRF) == (CRS_ISR_ERRF));
}
/**
* @brief Check if Expected SYNC signal occurred or not
* @rmtoll ISR ESYNCF LL_CRS_IsActiveFlag_ESYNC
* @retval State of bit (1 or 0).
*/
__STATIC_INLINE uint32_t LL_CRS_IsActiveFlag_ESYNC(void)
{
return (READ_BIT(CRS->ISR, CRS_ISR_ESYNCF) == (CRS_ISR_ESYNCF));
}
/**
* @brief Check if SYNC error signal occurred or not
* @rmtoll ISR SYNCERR LL_CRS_IsActiveFlag_SYNCERR
* @retval State of bit (1 or 0).
*/
__STATIC_INLINE uint32_t LL_CRS_IsActiveFlag_SYNCERR(void)
{
return (READ_BIT(CRS->ISR, CRS_ISR_SYNCERR) == (CRS_ISR_SYNCERR));
}
/**
* @brief Check if SYNC missed error signal occurred or not
* @rmtoll ISR SYNCMISS LL_CRS_IsActiveFlag_SYNCMISS
* @retval State of bit (1 or 0).
*/
__STATIC_INLINE uint32_t LL_CRS_IsActiveFlag_SYNCMISS(void)
{
return (READ_BIT(CRS->ISR, CRS_ISR_SYNCMISS) == (CRS_ISR_SYNCMISS));
}
/**
* @brief Check if Trimming overflow or underflow occurred or not
* @rmtoll ISR TRIMOVF LL_CRS_IsActiveFlag_TRIMOVF
* @retval State of bit (1 or 0).
*/
__STATIC_INLINE uint32_t LL_CRS_IsActiveFlag_TRIMOVF(void)
{
return (READ_BIT(CRS->ISR, CRS_ISR_TRIMOVF) == (CRS_ISR_TRIMOVF));
}
/**
* @brief Clear the SYNC event OK flag
* @rmtoll ICR SYNCOKC LL_CRS_ClearFlag_SYNCOK
* @retval None
*/
__STATIC_INLINE void LL_CRS_ClearFlag_SYNCOK(void)
{
WRITE_REG(CRS->ICR, CRS_ICR_SYNCOKC);
}
/**
* @brief Clear the SYNC warning flag
* @rmtoll ICR SYNCWARNC LL_CRS_ClearFlag_SYNCWARN
* @retval None
*/
__STATIC_INLINE void LL_CRS_ClearFlag_SYNCWARN(void)
{
WRITE_REG(CRS->ICR, CRS_ICR_SYNCWARNC);
}
/**
* @brief Clear TRIMOVF, SYNCMISS and SYNCERR bits and consequently also
* the ERR flag
* @rmtoll ICR ERRC LL_CRS_ClearFlag_ERR
* @retval None
*/
__STATIC_INLINE void LL_CRS_ClearFlag_ERR(void)
{
WRITE_REG(CRS->ICR, CRS_ICR_ERRC);
}
/**
* @brief Clear Expected SYNC flag
* @rmtoll ICR ESYNCC LL_CRS_ClearFlag_ESYNC
* @retval None
*/
__STATIC_INLINE void LL_CRS_ClearFlag_ESYNC(void)
{
WRITE_REG(CRS->ICR, CRS_ICR_ESYNCC);
}
/**
* @}
*/
/** @defgroup CRS_LL_EF_IT_Management IT_Management
* @{
*/
/**
* @brief Enable SYNC event OK interrupt
* @rmtoll CR SYNCOKIE LL_CRS_EnableIT_SYNCOK
* @retval None
*/
__STATIC_INLINE void LL_CRS_EnableIT_SYNCOK(void)
{
SET_BIT(CRS->CR, CRS_CR_SYNCOKIE);
}
/**
* @brief Disable SYNC event OK interrupt
* @rmtoll CR SYNCOKIE LL_CRS_DisableIT_SYNCOK
* @retval None
*/
__STATIC_INLINE void LL_CRS_DisableIT_SYNCOK(void)
{
CLEAR_BIT(CRS->CR, CRS_CR_SYNCOKIE);
}
/**
* @brief Check if SYNC event OK interrupt is enabled or not
* @rmtoll CR SYNCOKIE LL_CRS_IsEnabledIT_SYNCOK
* @retval State of bit (1 or 0).
*/
__STATIC_INLINE uint32_t LL_CRS_IsEnabledIT_SYNCOK(void)
{
return (READ_BIT(CRS->CR, CRS_CR_SYNCOKIE) == (CRS_CR_SYNCOKIE));
}
/**
* @brief Enable SYNC warning interrupt
* @rmtoll CR SYNCWARNIE LL_CRS_EnableIT_SYNCWARN
* @retval None
*/
__STATIC_INLINE void LL_CRS_EnableIT_SYNCWARN(void)
{
SET_BIT(CRS->CR, CRS_CR_SYNCWARNIE);
}
/**
* @brief Disable SYNC warning interrupt
* @rmtoll CR SYNCWARNIE LL_CRS_DisableIT_SYNCWARN
* @retval None
*/
__STATIC_INLINE void LL_CRS_DisableIT_SYNCWARN(void)
{
CLEAR_BIT(CRS->CR, CRS_CR_SYNCWARNIE);
}
/**
* @brief Check if SYNC warning interrupt is enabled or not
* @rmtoll CR SYNCWARNIE LL_CRS_IsEnabledIT_SYNCWARN
* @retval State of bit (1 or 0).
*/
__STATIC_INLINE uint32_t LL_CRS_IsEnabledIT_SYNCWARN(void)
{
return (READ_BIT(CRS->CR, CRS_CR_SYNCWARNIE) == (CRS_CR_SYNCWARNIE));
}
/**
* @brief Enable Synchronization or trimming error interrupt
* @rmtoll CR ERRIE LL_CRS_EnableIT_ERR
* @retval None
*/
__STATIC_INLINE void LL_CRS_EnableIT_ERR(void)
{
SET_BIT(CRS->CR, CRS_CR_ERRIE);
}
/**
* @brief Disable Synchronization or trimming error interrupt
* @rmtoll CR ERRIE LL_CRS_DisableIT_ERR
* @retval None
*/
__STATIC_INLINE void LL_CRS_DisableIT_ERR(void)
{
CLEAR_BIT(CRS->CR, CRS_CR_ERRIE);
}
/**
* @brief Check if Synchronization or trimming error interrupt is enabled or not
* @rmtoll CR ERRIE LL_CRS_IsEnabledIT_ERR
* @retval State of bit (1 or 0).
*/
__STATIC_INLINE uint32_t LL_CRS_IsEnabledIT_ERR(void)
{
return (READ_BIT(CRS->CR, CRS_CR_ERRIE) == (CRS_CR_ERRIE));
}
/**
* @brief Enable Expected SYNC interrupt
* @rmtoll CR ESYNCIE LL_CRS_EnableIT_ESYNC
* @retval None
*/
__STATIC_INLINE void LL_CRS_EnableIT_ESYNC(void)
{
SET_BIT(CRS->CR, CRS_CR_ESYNCIE);
}
/**
* @brief Disable Expected SYNC interrupt
* @rmtoll CR ESYNCIE LL_CRS_DisableIT_ESYNC
* @retval None
*/
__STATIC_INLINE void LL_CRS_DisableIT_ESYNC(void)
{
CLEAR_BIT(CRS->CR, CRS_CR_ESYNCIE);
}
/**
* @brief Check if Expected SYNC interrupt is enabled or not
* @rmtoll CR ESYNCIE LL_CRS_IsEnabledIT_ESYNC
* @retval State of bit (1 or 0).
*/
__STATIC_INLINE uint32_t LL_CRS_IsEnabledIT_ESYNC(void)
{
return (READ_BIT(CRS->CR, CRS_CR_ESYNCIE) == (CRS_CR_ESYNCIE));
}
/**
* @}
*/
#if defined(USE_FULL_LL_DRIVER)
/** @defgroup CRS_LL_EF_Init Initialization and de-initialization functions
* @{
*/
ErrorStatus LL_CRS_DeInit(void);
/**
* @}
*/
#endif /* USE_FULL_LL_DRIVER */
/**
* @}
*/
/**
* @}
*/
#endif /* defined(CRS) */
/**
* @}
*/
#ifdef __cplusplus
}
#endif
#endif /* __STM32L0xx_LL_CRS_H */
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

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/**
******************************************************************************
* @file stm32l0xx_ll_gpio.h
* @author MCD Application Team
* @brief Header file of GPIO LL module.
******************************************************************************
* @attention
*
* <h2><center>&copy; Copyright(c) 2016 STMicroelectronics.
* All rights reserved.</center></h2>
*
* This software component is licensed by ST under BSD 3-Clause license,
* the "License"; You may not use this file except in compliance with the
* License. You may obtain a copy of the License at:
* opensource.org/licenses/BSD-3-Clause
*
******************************************************************************
*/
/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __STM32L0xx_LL_GPIO_H
#define __STM32L0xx_LL_GPIO_H
#ifdef __cplusplus
extern "C" {
#endif
/* Includes ------------------------------------------------------------------*/
#include "stm32l0xx.h"
/** @addtogroup STM32L0xx_LL_Driver
* @{
*/
#if defined (GPIOA) || defined (GPIOB) || defined (GPIOC) || defined (GPIOD) || defined (GPIOE) || defined (GPIOH)
/** @defgroup GPIO_LL GPIO
* @{
*/
/* Private types -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private constants ---------------------------------------------------------*/
/* Private macros ------------------------------------------------------------*/
#if defined(USE_FULL_LL_DRIVER)
/** @defgroup GPIO_LL_Private_Macros GPIO Private Macros
* @{
*/
/**
* @}
*/
#endif /*USE_FULL_LL_DRIVER*/
/* Exported types ------------------------------------------------------------*/
#if defined(USE_FULL_LL_DRIVER)
/** @defgroup GPIO_LL_ES_INIT GPIO Exported Init structures
* @{
*/
/**
* @brief LL GPIO Init Structure definition
*/
typedef struct
{
uint32_t Pin; /*!< Specifies the GPIO pins to be configured.
This parameter can be any value of @ref GPIO_LL_EC_PIN */
uint32_t Mode; /*!< Specifies the operating mode for the selected pins.
This parameter can be a value of @ref GPIO_LL_EC_MODE.
GPIO HW configuration can be modified afterwards using unitary function @ref LL_GPIO_SetPinMode().*/
uint32_t Speed; /*!< Specifies the speed for the selected pins.
This parameter can be a value of @ref GPIO_LL_EC_SPEED.
GPIO HW configuration can be modified afterwards using unitary function @ref LL_GPIO_SetPinSpeed().*/
uint32_t OutputType; /*!< Specifies the operating output type for the selected pins.
This parameter can be a value of @ref GPIO_LL_EC_OUTPUT.
GPIO HW configuration can be modified afterwards using unitary function @ref LL_GPIO_SetPinOutputType().*/
uint32_t Pull; /*!< Specifies the operating Pull-up/Pull down for the selected pins.
This parameter can be a value of @ref GPIO_LL_EC_PULL.
GPIO HW configuration can be modified afterwards using unitary function @ref LL_GPIO_SetPinPull().*/
uint32_t Alternate; /*!< Specifies the Peripheral to be connected to the selected pins.
This parameter can be a value of @ref GPIO_LL_EC_AF.
GPIO HW configuration can be modified afterwards using unitary function @ref LL_GPIO_SetAFPin_0_7() and LL_GPIO_SetAFPin_8_15().*/
} LL_GPIO_InitTypeDef;
/**
* @}
*/
#endif /* USE_FULL_LL_DRIVER */
/* Exported constants --------------------------------------------------------*/
/** @defgroup GPIO_LL_Exported_Constants GPIO Exported Constants
* @{
*/
/** @defgroup GPIO_LL_EC_PIN PIN
* @{
*/
#define LL_GPIO_PIN_0 GPIO_BSRR_BS_0 /*!< Select pin 0 */
#define LL_GPIO_PIN_1 GPIO_BSRR_BS_1 /*!< Select pin 1 */
#define LL_GPIO_PIN_2 GPIO_BSRR_BS_2 /*!< Select pin 2 */
#define LL_GPIO_PIN_3 GPIO_BSRR_BS_3 /*!< Select pin 3 */
#define LL_GPIO_PIN_4 GPIO_BSRR_BS_4 /*!< Select pin 4 */
#define LL_GPIO_PIN_5 GPIO_BSRR_BS_5 /*!< Select pin 5 */
#define LL_GPIO_PIN_6 GPIO_BSRR_BS_6 /*!< Select pin 6 */
#define LL_GPIO_PIN_7 GPIO_BSRR_BS_7 /*!< Select pin 7 */
#define LL_GPIO_PIN_8 GPIO_BSRR_BS_8 /*!< Select pin 8 */
#define LL_GPIO_PIN_9 GPIO_BSRR_BS_9 /*!< Select pin 9 */
#define LL_GPIO_PIN_10 GPIO_BSRR_BS_10 /*!< Select pin 10 */
#define LL_GPIO_PIN_11 GPIO_BSRR_BS_11 /*!< Select pin 11 */
#define LL_GPIO_PIN_12 GPIO_BSRR_BS_12 /*!< Select pin 12 */
#define LL_GPIO_PIN_13 GPIO_BSRR_BS_13 /*!< Select pin 13 */
#define LL_GPIO_PIN_14 GPIO_BSRR_BS_14 /*!< Select pin 14 */
#define LL_GPIO_PIN_15 GPIO_BSRR_BS_15 /*!< Select pin 15 */
#define LL_GPIO_PIN_ALL (GPIO_BSRR_BS_0 | GPIO_BSRR_BS_1 | GPIO_BSRR_BS_2 | \
GPIO_BSRR_BS_3 | GPIO_BSRR_BS_4 | GPIO_BSRR_BS_5 | \
GPIO_BSRR_BS_6 | GPIO_BSRR_BS_7 | GPIO_BSRR_BS_8 | \
GPIO_BSRR_BS_9 | GPIO_BSRR_BS_10 | GPIO_BSRR_BS_11 | \
GPIO_BSRR_BS_12 | GPIO_BSRR_BS_13 | GPIO_BSRR_BS_14 | \
GPIO_BSRR_BS_15) /*!< Select all pins */
/**
* @}
*/
/** @defgroup GPIO_LL_EC_MODE Mode
* @{
*/
#define LL_GPIO_MODE_INPUT (0x00000000U) /*!< Select input mode */
#define LL_GPIO_MODE_OUTPUT GPIO_MODER_MODE0_0 /*!< Select output mode */
#define LL_GPIO_MODE_ALTERNATE GPIO_MODER_MODE0_1 /*!< Select alternate function mode */
#define LL_GPIO_MODE_ANALOG GPIO_MODER_MODE0 /*!< Select analog mode */
/**
* @}
*/
/** @defgroup GPIO_LL_EC_OUTPUT Output Type
* @{
*/
#define LL_GPIO_OUTPUT_PUSHPULL (0x00000000U) /*!< Select push-pull as output type */
#define LL_GPIO_OUTPUT_OPENDRAIN GPIO_OTYPER_OT_0 /*!< Select open-drain as output type */
/**
* @}
*/
/** @defgroup GPIO_LL_EC_SPEED Output Speed
* @{
*/
#define LL_GPIO_SPEED_FREQ_LOW (0x00000000U) /*!< Select I/O low output speed */
#define LL_GPIO_SPEED_FREQ_MEDIUM GPIO_OSPEEDER_OSPEED0_0 /*!< Select I/O medium output speed */
#define LL_GPIO_SPEED_FREQ_HIGH GPIO_OSPEEDER_OSPEED0_1 /*!< Select I/O fast output speed */
#define LL_GPIO_SPEED_FREQ_VERY_HIGH GPIO_OSPEEDER_OSPEED0 /*!< Select I/O high output speed */
/**
* @}
*/
#define LL_GPIO_SPEED_LOW LL_GPIO_SPEED_FREQ_LOW
#define LL_GPIO_SPEED_MEDIUM LL_GPIO_SPEED_FREQ_MEDIUM
#define LL_GPIO_SPEED_FAST LL_GPIO_SPEED_FREQ_HIGH
#define LL_GPIO_SPEED_HIGH LL_GPIO_SPEED_FREQ_VERY_HIGH
/** @defgroup GPIO_LL_EC_PULL Pull Up Pull Down
* @{
*/
#define LL_GPIO_PULL_NO (0x00000000U) /*!< Select I/O no pull */
#define LL_GPIO_PULL_UP GPIO_PUPDR_PUPD0_0 /*!< Select I/O pull up */
#define LL_GPIO_PULL_DOWN GPIO_PUPDR_PUPD0_1 /*!< Select I/O pull down */
/**
* @}
*/
/** @defgroup GPIO_LL_EC_AF Alternate Function
* @{
*/
#define LL_GPIO_AF_0 (0x0000000U) /*!< Select alternate function 0 */
#define LL_GPIO_AF_1 (0x0000001U) /*!< Select alternate function 1 */
#define LL_GPIO_AF_2 (0x0000002U) /*!< Select alternate function 2 */
#define LL_GPIO_AF_3 (0x0000003U) /*!< Select alternate function 3 */
#define LL_GPIO_AF_4 (0x0000004U) /*!< Select alternate function 4 */
#define LL_GPIO_AF_5 (0x0000005U) /*!< Select alternate function 5 */
#define LL_GPIO_AF_6 (0x0000006U) /*!< Select alternate function 6 */
#define LL_GPIO_AF_7 (0x0000007U) /*!< Select alternate function 7 */
/**
* @}
*/
/**
* @}
*/
/* Exported macro ------------------------------------------------------------*/
/** @defgroup GPIO_LL_Exported_Macros GPIO Exported Macros
* @{
*/
/** @defgroup GPIO_LL_EM_WRITE_READ Common Write and read registers Macros
* @{
*/
/**
* @brief Write a value in GPIO register
* @param __INSTANCE__ GPIO Instance
* @param __REG__ Register to be written
* @param __VALUE__ Value to be written in the register
* @retval None
*/
#define LL_GPIO_WriteReg(__INSTANCE__, __REG__, __VALUE__) WRITE_REG(__INSTANCE__->__REG__, (__VALUE__))
/**
* @brief Read a value in GPIO register
* @param __INSTANCE__ GPIO Instance
* @param __REG__ Register to be read
* @retval Register value
*/
#define LL_GPIO_ReadReg(__INSTANCE__, __REG__) READ_REG(__INSTANCE__->__REG__)
/**
* @}
*/
/**
* @}
*/
/* Exported functions --------------------------------------------------------*/
/** @defgroup GPIO_LL_Exported_Functions GPIO Exported Functions
* @{
*/
/** @defgroup GPIO_LL_EF_Port_Configuration Port Configuration
* @{
*/
/**
* @brief Configure gpio mode for a dedicated pin on dedicated port.
* @note I/O mode can be Input mode, General purpose output, Alternate function mode or Analog.
* @note Warning: only one pin can be passed as parameter.
* @rmtoll MODER MODEy LL_GPIO_SetPinMode
* @param GPIOx GPIO Port
* @param Pin This parameter can be one of the following values:
* @arg @ref LL_GPIO_PIN_0
* @arg @ref LL_GPIO_PIN_1
* @arg @ref LL_GPIO_PIN_2
* @arg @ref LL_GPIO_PIN_3
* @arg @ref LL_GPIO_PIN_4
* @arg @ref LL_GPIO_PIN_5
* @arg @ref LL_GPIO_PIN_6
* @arg @ref LL_GPIO_PIN_7
* @arg @ref LL_GPIO_PIN_8
* @arg @ref LL_GPIO_PIN_9
* @arg @ref LL_GPIO_PIN_10
* @arg @ref LL_GPIO_PIN_11
* @arg @ref LL_GPIO_PIN_12
* @arg @ref LL_GPIO_PIN_13
* @arg @ref LL_GPIO_PIN_14
* @arg @ref LL_GPIO_PIN_15
* @param Mode This parameter can be one of the following values:
* @arg @ref LL_GPIO_MODE_INPUT
* @arg @ref LL_GPIO_MODE_OUTPUT
* @arg @ref LL_GPIO_MODE_ALTERNATE
* @arg @ref LL_GPIO_MODE_ANALOG
* @retval None
*/
__STATIC_INLINE void LL_GPIO_SetPinMode(GPIO_TypeDef *GPIOx, uint32_t Pin, uint32_t Mode)
{
MODIFY_REG(GPIOx->MODER, ((Pin * Pin) * GPIO_MODER_MODE0), ((Pin * Pin) * Mode));
}
/**
* @brief Return gpio mode for a dedicated pin on dedicated port.
* @note I/O mode can be Input mode, General purpose output, Alternate function mode or Analog.
* @note Warning: only one pin can be passed as parameter.
* @rmtoll MODER MODEy LL_GPIO_GetPinMode
* @param GPIOx GPIO Port
* @param Pin This parameter can be one of the following values:
* @arg @ref LL_GPIO_PIN_0
* @arg @ref LL_GPIO_PIN_1
* @arg @ref LL_GPIO_PIN_2
* @arg @ref LL_GPIO_PIN_3
* @arg @ref LL_GPIO_PIN_4
* @arg @ref LL_GPIO_PIN_5
* @arg @ref LL_GPIO_PIN_6
* @arg @ref LL_GPIO_PIN_7
* @arg @ref LL_GPIO_PIN_8
* @arg @ref LL_GPIO_PIN_9
* @arg @ref LL_GPIO_PIN_10
* @arg @ref LL_GPIO_PIN_11
* @arg @ref LL_GPIO_PIN_12
* @arg @ref LL_GPIO_PIN_13
* @arg @ref LL_GPIO_PIN_14
* @arg @ref LL_GPIO_PIN_15
* @retval Returned value can be one of the following values:
* @arg @ref LL_GPIO_MODE_INPUT
* @arg @ref LL_GPIO_MODE_OUTPUT
* @arg @ref LL_GPIO_MODE_ALTERNATE
* @arg @ref LL_GPIO_MODE_ANALOG
*/
__STATIC_INLINE uint32_t LL_GPIO_GetPinMode(GPIO_TypeDef *GPIOx, uint32_t Pin)
{
return (uint32_t)(READ_BIT(GPIOx->MODER, ((Pin * Pin) * GPIO_MODER_MODE0)) / (Pin * Pin));
}
/**
* @brief Configure gpio output type for several pins on dedicated port.
* @note Output type as to be set when gpio pin is in output or
* alternate modes. Possible type are Push-pull or Open-drain.
* @rmtoll OTYPER OTy LL_GPIO_SetPinOutputType
* @param GPIOx GPIO Port
* @param PinMask This parameter can be a combination of the following values:
* @arg @ref LL_GPIO_PIN_0
* @arg @ref LL_GPIO_PIN_1
* @arg @ref LL_GPIO_PIN_2
* @arg @ref LL_GPIO_PIN_3
* @arg @ref LL_GPIO_PIN_4
* @arg @ref LL_GPIO_PIN_5
* @arg @ref LL_GPIO_PIN_6
* @arg @ref LL_GPIO_PIN_7
* @arg @ref LL_GPIO_PIN_8
* @arg @ref LL_GPIO_PIN_9
* @arg @ref LL_GPIO_PIN_10
* @arg @ref LL_GPIO_PIN_11
* @arg @ref LL_GPIO_PIN_12
* @arg @ref LL_GPIO_PIN_13
* @arg @ref LL_GPIO_PIN_14
* @arg @ref LL_GPIO_PIN_15
* @arg @ref LL_GPIO_PIN_ALL
* @param OutputType This parameter can be one of the following values:
* @arg @ref LL_GPIO_OUTPUT_PUSHPULL
* @arg @ref LL_GPIO_OUTPUT_OPENDRAIN
* @retval None
*/
__STATIC_INLINE void LL_GPIO_SetPinOutputType(GPIO_TypeDef *GPIOx, uint32_t PinMask, uint32_t OutputType)
{
MODIFY_REG(GPIOx->OTYPER, PinMask, (PinMask * OutputType));
}
/**
* @brief Return gpio output type for several pins on dedicated port.
* @note Output type as to be set when gpio pin is in output or
* alternate modes. Possible type are Push-pull or Open-drain.
* @note Warning: only one pin can be passed as parameter.
* @rmtoll OTYPER OTy LL_GPIO_GetPinOutputType
* @param GPIOx GPIO Port
* @param Pin This parameter can be one of the following values:
* @arg @ref LL_GPIO_PIN_0
* @arg @ref LL_GPIO_PIN_1
* @arg @ref LL_GPIO_PIN_2
* @arg @ref LL_GPIO_PIN_3
* @arg @ref LL_GPIO_PIN_4
* @arg @ref LL_GPIO_PIN_5
* @arg @ref LL_GPIO_PIN_6
* @arg @ref LL_GPIO_PIN_7
* @arg @ref LL_GPIO_PIN_8
* @arg @ref LL_GPIO_PIN_9
* @arg @ref LL_GPIO_PIN_10
* @arg @ref LL_GPIO_PIN_11
* @arg @ref LL_GPIO_PIN_12
* @arg @ref LL_GPIO_PIN_13
* @arg @ref LL_GPIO_PIN_14
* @arg @ref LL_GPIO_PIN_15
* @arg @ref LL_GPIO_PIN_ALL
* @retval Returned value can be one of the following values:
* @arg @ref LL_GPIO_OUTPUT_PUSHPULL
* @arg @ref LL_GPIO_OUTPUT_OPENDRAIN
*/
__STATIC_INLINE uint32_t LL_GPIO_GetPinOutputType(GPIO_TypeDef *GPIOx, uint32_t Pin)
{
return (uint32_t)(READ_BIT(GPIOx->OTYPER, Pin) / Pin);
}
/**
* @brief Configure gpio speed for a dedicated pin on dedicated port.
* @note I/O speed can be Low, Medium, Fast or High speed.
* @note Warning: only one pin can be passed as parameter.
* @note Refer to datasheet for frequency specifications and the power
* supply and load conditions for each speed.
* @rmtoll OSPEEDR OSPEEDy LL_GPIO_SetPinSpeed
* @param GPIOx GPIO Port
* @param Pin This parameter can be one of the following values:
* @arg @ref LL_GPIO_PIN_0
* @arg @ref LL_GPIO_PIN_1
* @arg @ref LL_GPIO_PIN_2
* @arg @ref LL_GPIO_PIN_3
* @arg @ref LL_GPIO_PIN_4
* @arg @ref LL_GPIO_PIN_5
* @arg @ref LL_GPIO_PIN_6
* @arg @ref LL_GPIO_PIN_7
* @arg @ref LL_GPIO_PIN_8
* @arg @ref LL_GPIO_PIN_9
* @arg @ref LL_GPIO_PIN_10
* @arg @ref LL_GPIO_PIN_11
* @arg @ref LL_GPIO_PIN_12
* @arg @ref LL_GPIO_PIN_13
* @arg @ref LL_GPIO_PIN_14
* @arg @ref LL_GPIO_PIN_15
* @param Speed This parameter can be one of the following values:
* @arg @ref LL_GPIO_SPEED_FREQ_LOW
* @arg @ref LL_GPIO_SPEED_FREQ_MEDIUM
* @arg @ref LL_GPIO_SPEED_FREQ_HIGH
* @arg @ref LL_GPIO_SPEED_FREQ_VERY_HIGH
* @retval None
*/
__STATIC_INLINE void LL_GPIO_SetPinSpeed(GPIO_TypeDef *GPIOx, uint32_t Pin, uint32_t Speed)
{
MODIFY_REG(GPIOx->OSPEEDR, ((Pin * Pin) * GPIO_OSPEEDER_OSPEED0), ((Pin * Pin) * Speed));
}
/**
* @brief Return gpio speed for a dedicated pin on dedicated port.
* @note I/O speed can be Low, Medium, Fast or High speed.
* @note Warning: only one pin can be passed as parameter.
* @note Refer to datasheet for frequency specifications and the power
* supply and load conditions for each speed.
* @rmtoll OSPEEDR OSPEEDy LL_GPIO_GetPinSpeed
* @param GPIOx GPIO Port
* @param Pin This parameter can be one of the following values:
* @arg @ref LL_GPIO_PIN_0
* @arg @ref LL_GPIO_PIN_1
* @arg @ref LL_GPIO_PIN_2
* @arg @ref LL_GPIO_PIN_3
* @arg @ref LL_GPIO_PIN_4
* @arg @ref LL_GPIO_PIN_5
* @arg @ref LL_GPIO_PIN_6
* @arg @ref LL_GPIO_PIN_7
* @arg @ref LL_GPIO_PIN_8
* @arg @ref LL_GPIO_PIN_9
* @arg @ref LL_GPIO_PIN_10
* @arg @ref LL_GPIO_PIN_11
* @arg @ref LL_GPIO_PIN_12
* @arg @ref LL_GPIO_PIN_13
* @arg @ref LL_GPIO_PIN_14
* @arg @ref LL_GPIO_PIN_15
* @retval Returned value can be one of the following values:
* @arg @ref LL_GPIO_SPEED_FREQ_LOW
* @arg @ref LL_GPIO_SPEED_FREQ_MEDIUM
* @arg @ref LL_GPIO_SPEED_FREQ_HIGH
* @arg @ref LL_GPIO_SPEED_FREQ_VERY_HIGH
*/
__STATIC_INLINE uint32_t LL_GPIO_GetPinSpeed(GPIO_TypeDef *GPIOx, uint32_t Pin)
{
return (uint32_t)(READ_BIT(GPIOx->OSPEEDR, ((Pin * Pin) * GPIO_OSPEEDER_OSPEED0)) / (Pin * Pin));
}
/**
* @brief Configure gpio pull-up or pull-down for a dedicated pin on a dedicated port.
* @note Warning: only one pin can be passed as parameter.
* @rmtoll PUPDR PUPDy LL_GPIO_SetPinPull
* @param GPIOx GPIO Port
* @param Pin This parameter can be one of the following values:
* @arg @ref LL_GPIO_PIN_0
* @arg @ref LL_GPIO_PIN_1
* @arg @ref LL_GPIO_PIN_2
* @arg @ref LL_GPIO_PIN_3
* @arg @ref LL_GPIO_PIN_4
* @arg @ref LL_GPIO_PIN_5
* @arg @ref LL_GPIO_PIN_6
* @arg @ref LL_GPIO_PIN_7
* @arg @ref LL_GPIO_PIN_8
* @arg @ref LL_GPIO_PIN_9
* @arg @ref LL_GPIO_PIN_10
* @arg @ref LL_GPIO_PIN_11
* @arg @ref LL_GPIO_PIN_12
* @arg @ref LL_GPIO_PIN_13
* @arg @ref LL_GPIO_PIN_14
* @arg @ref LL_GPIO_PIN_15
* @param Pull This parameter can be one of the following values:
* @arg @ref LL_GPIO_PULL_NO
* @arg @ref LL_GPIO_PULL_UP
* @arg @ref LL_GPIO_PULL_DOWN
* @retval None
*/
__STATIC_INLINE void LL_GPIO_SetPinPull(GPIO_TypeDef *GPIOx, uint32_t Pin, uint32_t Pull)
{
MODIFY_REG(GPIOx->PUPDR, ((Pin * Pin) * GPIO_PUPDR_PUPD0), ((Pin * Pin) * Pull));
}
/**
* @brief Return gpio pull-up or pull-down for a dedicated pin on a dedicated port
* @note Warning: only one pin can be passed as parameter.
* @rmtoll PUPDR PUPDy LL_GPIO_GetPinPull
* @param GPIOx GPIO Port
* @param Pin This parameter can be one of the following values:
* @arg @ref LL_GPIO_PIN_0
* @arg @ref LL_GPIO_PIN_1
* @arg @ref LL_GPIO_PIN_2
* @arg @ref LL_GPIO_PIN_3
* @arg @ref LL_GPIO_PIN_4
* @arg @ref LL_GPIO_PIN_5
* @arg @ref LL_GPIO_PIN_6
* @arg @ref LL_GPIO_PIN_7
* @arg @ref LL_GPIO_PIN_8
* @arg @ref LL_GPIO_PIN_9
* @arg @ref LL_GPIO_PIN_10
* @arg @ref LL_GPIO_PIN_11
* @arg @ref LL_GPIO_PIN_12
* @arg @ref LL_GPIO_PIN_13
* @arg @ref LL_GPIO_PIN_14
* @arg @ref LL_GPIO_PIN_15
* @retval Returned value can be one of the following values:
* @arg @ref LL_GPIO_PULL_NO
* @arg @ref LL_GPIO_PULL_UP
* @arg @ref LL_GPIO_PULL_DOWN
*/
__STATIC_INLINE uint32_t LL_GPIO_GetPinPull(GPIO_TypeDef *GPIOx, uint32_t Pin)
{
return (uint32_t)(READ_BIT(GPIOx->PUPDR, ((Pin * Pin) * GPIO_PUPDR_PUPD0)) / (Pin * Pin));
}
/**
* @brief Configure gpio alternate function of a dedicated pin from 0 to 7 for a dedicated port.
* @note Possible values are from AF0 to AF7 depending on target.
* @note Warning: only one pin can be passed as parameter.
* @rmtoll AFRL AFSELy LL_GPIO_SetAFPin_0_7
* @param GPIOx GPIO Port
* @param Pin This parameter can be one of the following values:
* @arg @ref LL_GPIO_PIN_0
* @arg @ref LL_GPIO_PIN_1
* @arg @ref LL_GPIO_PIN_2
* @arg @ref LL_GPIO_PIN_3
* @arg @ref LL_GPIO_PIN_4
* @arg @ref LL_GPIO_PIN_5
* @arg @ref LL_GPIO_PIN_6
* @arg @ref LL_GPIO_PIN_7
* @param Alternate This parameter can be one of the following values:
* @arg @ref LL_GPIO_AF_0
* @arg @ref LL_GPIO_AF_1
* @arg @ref LL_GPIO_AF_2
* @arg @ref LL_GPIO_AF_3
* @arg @ref LL_GPIO_AF_4
* @arg @ref LL_GPIO_AF_5
* @arg @ref LL_GPIO_AF_6
* @arg @ref LL_GPIO_AF_7
* @retval None
*/
__STATIC_INLINE void LL_GPIO_SetAFPin_0_7(GPIO_TypeDef *GPIOx, uint32_t Pin, uint32_t Alternate)
{
MODIFY_REG(GPIOx->AFR[0], ((((Pin * Pin) * Pin) * Pin) * GPIO_AFRL_AFSEL0),
((((Pin * Pin) * Pin) * Pin) * Alternate));
}
/**
* @brief Return gpio alternate function of a dedicated pin from 0 to 7 for a dedicated port.
* @rmtoll AFRL AFSELy LL_GPIO_GetAFPin_0_7
* @param GPIOx GPIO Port
* @param Pin This parameter can be one of the following values:
* @arg @ref LL_GPIO_PIN_0
* @arg @ref LL_GPIO_PIN_1
* @arg @ref LL_GPIO_PIN_2
* @arg @ref LL_GPIO_PIN_3
* @arg @ref LL_GPIO_PIN_4
* @arg @ref LL_GPIO_PIN_5
* @arg @ref LL_GPIO_PIN_6
* @arg @ref LL_GPIO_PIN_7
* @retval Returned value can be one of the following values:
* @arg @ref LL_GPIO_AF_0
* @arg @ref LL_GPIO_AF_1
* @arg @ref LL_GPIO_AF_2
* @arg @ref LL_GPIO_AF_3
* @arg @ref LL_GPIO_AF_4
* @arg @ref LL_GPIO_AF_5
* @arg @ref LL_GPIO_AF_6
* @arg @ref LL_GPIO_AF_7
*/
__STATIC_INLINE uint32_t LL_GPIO_GetAFPin_0_7(GPIO_TypeDef *GPIOx, uint32_t Pin)
{
return (uint32_t)(READ_BIT(GPIOx->AFR[0],
((((Pin * Pin) * Pin) * Pin) * GPIO_AFRL_AFSEL0)) / (((Pin * Pin) * Pin) * Pin));
}
/**
* @brief Configure gpio alternate function of a dedicated pin from 8 to 15 for a dedicated port.
* @note Possible values are from AF0 to AF7 depending on target.
* @note Warning: only one pin can be passed as parameter.
* @rmtoll AFRH AFSELy LL_GPIO_SetAFPin_8_15
* @param GPIOx GPIO Port
* @param Pin This parameter can be one of the following values:
* @arg @ref LL_GPIO_PIN_8
* @arg @ref LL_GPIO_PIN_9
* @arg @ref LL_GPIO_PIN_10
* @arg @ref LL_GPIO_PIN_11
* @arg @ref LL_GPIO_PIN_12
* @arg @ref LL_GPIO_PIN_13
* @arg @ref LL_GPIO_PIN_14
* @arg @ref LL_GPIO_PIN_15
* @param Alternate This parameter can be one of the following values:
* @arg @ref LL_GPIO_AF_0
* @arg @ref LL_GPIO_AF_1
* @arg @ref LL_GPIO_AF_2
* @arg @ref LL_GPIO_AF_3
* @arg @ref LL_GPIO_AF_4
* @arg @ref LL_GPIO_AF_5
* @arg @ref LL_GPIO_AF_6
* @arg @ref LL_GPIO_AF_7
* @retval None
*/
__STATIC_INLINE void LL_GPIO_SetAFPin_8_15(GPIO_TypeDef *GPIOx, uint32_t Pin, uint32_t Alternate)
{
MODIFY_REG(GPIOx->AFR[1], (((((Pin >> 8U) * (Pin >> 8U)) * (Pin >> 8U)) * (Pin >> 8U)) * GPIO_AFRH_AFSEL8),
(((((Pin >> 8U) * (Pin >> 8U)) * (Pin >> 8U)) * (Pin >> 8U)) * Alternate));
}
/**
* @brief Return gpio alternate function of a dedicated pin from 8 to 15 for a dedicated port.
* @note Possible values are from AF0 to AF7 depending on target.
* @rmtoll AFRH AFSELy LL_GPIO_GetAFPin_8_15
* @param GPIOx GPIO Port
* @param Pin This parameter can be one of the following values:
* @arg @ref LL_GPIO_PIN_8
* @arg @ref LL_GPIO_PIN_9
* @arg @ref LL_GPIO_PIN_10
* @arg @ref LL_GPIO_PIN_11
* @arg @ref LL_GPIO_PIN_12
* @arg @ref LL_GPIO_PIN_13
* @arg @ref LL_GPIO_PIN_14
* @arg @ref LL_GPIO_PIN_15
* @retval Returned value can be one of the following values:
* @arg @ref LL_GPIO_AF_0
* @arg @ref LL_GPIO_AF_1
* @arg @ref LL_GPIO_AF_2
* @arg @ref LL_GPIO_AF_3
* @arg @ref LL_GPIO_AF_4
* @arg @ref LL_GPIO_AF_5
* @arg @ref LL_GPIO_AF_6
* @arg @ref LL_GPIO_AF_7
*/
__STATIC_INLINE uint32_t LL_GPIO_GetAFPin_8_15(GPIO_TypeDef *GPIOx, uint32_t Pin)
{
return (uint32_t)(READ_BIT(GPIOx->AFR[1],
(((((Pin >> 8U) * (Pin >> 8U)) * (Pin >> 8U)) * (Pin >> 8U)) * GPIO_AFRH_AFSEL8)) / ((((Pin >> 8U) *
(Pin >> 8U)) * (Pin >> 8U)) * (Pin >> 8U)));
}
/**
* @brief Lock configuration of several pins for a dedicated port.
* @note When the lock sequence has been applied on a port bit, the
* value of this port bit can no longer be modified until the
* next reset.
* @note Each lock bit freezes a specific configuration register
* (control and alternate function registers).
* @rmtoll LCKR LCKK LL_GPIO_LockPin
* @param GPIOx GPIO Port
* @param PinMask This parameter can be a combination of the following values:
* @arg @ref LL_GPIO_PIN_0
* @arg @ref LL_GPIO_PIN_1
* @arg @ref LL_GPIO_PIN_2
* @arg @ref LL_GPIO_PIN_3
* @arg @ref LL_GPIO_PIN_4
* @arg @ref LL_GPIO_PIN_5
* @arg @ref LL_GPIO_PIN_6
* @arg @ref LL_GPIO_PIN_7
* @arg @ref LL_GPIO_PIN_8
* @arg @ref LL_GPIO_PIN_9
* @arg @ref LL_GPIO_PIN_10
* @arg @ref LL_GPIO_PIN_11
* @arg @ref LL_GPIO_PIN_12
* @arg @ref LL_GPIO_PIN_13
* @arg @ref LL_GPIO_PIN_14
* @arg @ref LL_GPIO_PIN_15
* @arg @ref LL_GPIO_PIN_ALL
* @retval None
*/
__STATIC_INLINE void LL_GPIO_LockPin(GPIO_TypeDef *GPIOx, uint32_t PinMask)
{
__IO uint32_t temp;
WRITE_REG(GPIOx->LCKR, GPIO_LCKR_LCKK | PinMask);
WRITE_REG(GPIOx->LCKR, PinMask);
WRITE_REG(GPIOx->LCKR, GPIO_LCKR_LCKK | PinMask);
/* Read LCKK register. This read is mandatory to complete key lock sequence */
temp = READ_REG(GPIOx->LCKR);
(void) temp;
}
/**
* @brief Return 1 if all pins passed as parameter, of a dedicated port, are locked. else Return 0.
* @rmtoll LCKR LCKy LL_GPIO_IsPinLocked
* @param GPIOx GPIO Port
* @param PinMask This parameter can be a combination of the following values:
* @arg @ref LL_GPIO_PIN_0
* @arg @ref LL_GPIO_PIN_1
* @arg @ref LL_GPIO_PIN_2
* @arg @ref LL_GPIO_PIN_3
* @arg @ref LL_GPIO_PIN_4
* @arg @ref LL_GPIO_PIN_5
* @arg @ref LL_GPIO_PIN_6
* @arg @ref LL_GPIO_PIN_7
* @arg @ref LL_GPIO_PIN_8
* @arg @ref LL_GPIO_PIN_9
* @arg @ref LL_GPIO_PIN_10
* @arg @ref LL_GPIO_PIN_11
* @arg @ref LL_GPIO_PIN_12
* @arg @ref LL_GPIO_PIN_13
* @arg @ref LL_GPIO_PIN_14
* @arg @ref LL_GPIO_PIN_15
* @arg @ref LL_GPIO_PIN_ALL
* @retval State of bit (1 or 0).
*/
__STATIC_INLINE uint32_t LL_GPIO_IsPinLocked(GPIO_TypeDef *GPIOx, uint32_t PinMask)
{
return (READ_BIT(GPIOx->LCKR, PinMask) == (PinMask));
}
/**
* @brief Return 1 if one of the pin of a dedicated port is locked. else return 0.
* @rmtoll LCKR LCKK LL_GPIO_IsAnyPinLocked
* @param GPIOx GPIO Port
* @retval State of bit (1 or 0).
*/
__STATIC_INLINE uint32_t LL_GPIO_IsAnyPinLocked(GPIO_TypeDef *GPIOx)
{
return (READ_BIT(GPIOx->LCKR, GPIO_LCKR_LCKK) == (GPIO_LCKR_LCKK));
}
/**
* @}
*/
/** @defgroup GPIO_LL_EF_Data_Access Data Access
* @{
*/
/**
* @brief Return full input data register value for a dedicated port.
* @rmtoll IDR IDy LL_GPIO_ReadInputPort
* @param GPIOx GPIO Port
* @retval Input data register value of port
*/
__STATIC_INLINE uint32_t LL_GPIO_ReadInputPort(GPIO_TypeDef *GPIOx)
{
return (uint32_t)(READ_REG(GPIOx->IDR));
}
/**
* @brief Return if input data level for several pins of dedicated port is high or low.
* @rmtoll IDR IDy LL_GPIO_IsInputPinSet
* @param GPIOx GPIO Port
* @param PinMask This parameter can be a combination of the following values:
* @arg @ref LL_GPIO_PIN_0
* @arg @ref LL_GPIO_PIN_1
* @arg @ref LL_GPIO_PIN_2
* @arg @ref LL_GPIO_PIN_3
* @arg @ref LL_GPIO_PIN_4
* @arg @ref LL_GPIO_PIN_5
* @arg @ref LL_GPIO_PIN_6
* @arg @ref LL_GPIO_PIN_7
* @arg @ref LL_GPIO_PIN_8
* @arg @ref LL_GPIO_PIN_9
* @arg @ref LL_GPIO_PIN_10
* @arg @ref LL_GPIO_PIN_11
* @arg @ref LL_GPIO_PIN_12
* @arg @ref LL_GPIO_PIN_13
* @arg @ref LL_GPIO_PIN_14
* @arg @ref LL_GPIO_PIN_15
* @arg @ref LL_GPIO_PIN_ALL
* @retval State of bit (1 or 0).
*/
__STATIC_INLINE uint32_t LL_GPIO_IsInputPinSet(GPIO_TypeDef *GPIOx, uint32_t PinMask)
{
return (READ_BIT(GPIOx->IDR, PinMask) == (PinMask));
}
/**
* @brief Write output data register for the port.
* @rmtoll ODR ODy LL_GPIO_WriteOutputPort
* @param GPIOx GPIO Port
* @param PortValue Level value for each pin of the port
* @retval None
*/
__STATIC_INLINE void LL_GPIO_WriteOutputPort(GPIO_TypeDef *GPIOx, uint32_t PortValue)
{
WRITE_REG(GPIOx->ODR, PortValue);
}
/**
* @brief Return full output data register value for a dedicated port.
* @rmtoll ODR ODy LL_GPIO_ReadOutputPort
* @param GPIOx GPIO Port
* @retval Output data register value of port
*/
__STATIC_INLINE uint32_t LL_GPIO_ReadOutputPort(GPIO_TypeDef *GPIOx)
{
return (uint32_t)(READ_REG(GPIOx->ODR));
}
/**
* @brief Return if input data level for several pins of dedicated port is high or low.
* @rmtoll ODR ODy LL_GPIO_IsOutputPinSet
* @param GPIOx GPIO Port
* @param PinMask This parameter can be a combination of the following values:
* @arg @ref LL_GPIO_PIN_0
* @arg @ref LL_GPIO_PIN_1
* @arg @ref LL_GPIO_PIN_2
* @arg @ref LL_GPIO_PIN_3
* @arg @ref LL_GPIO_PIN_4
* @arg @ref LL_GPIO_PIN_5
* @arg @ref LL_GPIO_PIN_6
* @arg @ref LL_GPIO_PIN_7
* @arg @ref LL_GPIO_PIN_8
* @arg @ref LL_GPIO_PIN_9
* @arg @ref LL_GPIO_PIN_10
* @arg @ref LL_GPIO_PIN_11
* @arg @ref LL_GPIO_PIN_12
* @arg @ref LL_GPIO_PIN_13
* @arg @ref LL_GPIO_PIN_14
* @arg @ref LL_GPIO_PIN_15
* @arg @ref LL_GPIO_PIN_ALL
* @retval State of bit (1 or 0).
*/
__STATIC_INLINE uint32_t LL_GPIO_IsOutputPinSet(GPIO_TypeDef *GPIOx, uint32_t PinMask)
{
return (READ_BIT(GPIOx->ODR, PinMask) == (PinMask));
}
/**
* @brief Set several pins to high level on dedicated gpio port.
* @rmtoll BSRR BSy LL_GPIO_SetOutputPin
* @param GPIOx GPIO Port
* @param PinMask This parameter can be a combination of the following values:
* @arg @ref LL_GPIO_PIN_0
* @arg @ref LL_GPIO_PIN_1
* @arg @ref LL_GPIO_PIN_2
* @arg @ref LL_GPIO_PIN_3
* @arg @ref LL_GPIO_PIN_4
* @arg @ref LL_GPIO_PIN_5
* @arg @ref LL_GPIO_PIN_6
* @arg @ref LL_GPIO_PIN_7
* @arg @ref LL_GPIO_PIN_8
* @arg @ref LL_GPIO_PIN_9
* @arg @ref LL_GPIO_PIN_10
* @arg @ref LL_GPIO_PIN_11
* @arg @ref LL_GPIO_PIN_12
* @arg @ref LL_GPIO_PIN_13
* @arg @ref LL_GPIO_PIN_14
* @arg @ref LL_GPIO_PIN_15
* @arg @ref LL_GPIO_PIN_ALL
* @retval None
*/
__STATIC_INLINE void LL_GPIO_SetOutputPin(GPIO_TypeDef *GPIOx, uint32_t PinMask)
{
WRITE_REG(GPIOx->BSRR, PinMask);
}
/**
* @brief Set several pins to low level on dedicated gpio port.
* @rmtoll BRR BRy LL_GPIO_ResetOutputPin
* @param GPIOx GPIO Port
* @param PinMask This parameter can be a combination of the following values:
* @arg @ref LL_GPIO_PIN_0
* @arg @ref LL_GPIO_PIN_1
* @arg @ref LL_GPIO_PIN_2
* @arg @ref LL_GPIO_PIN_3
* @arg @ref LL_GPIO_PIN_4
* @arg @ref LL_GPIO_PIN_5
* @arg @ref LL_GPIO_PIN_6
* @arg @ref LL_GPIO_PIN_7
* @arg @ref LL_GPIO_PIN_8
* @arg @ref LL_GPIO_PIN_9
* @arg @ref LL_GPIO_PIN_10
* @arg @ref LL_GPIO_PIN_11
* @arg @ref LL_GPIO_PIN_12
* @arg @ref LL_GPIO_PIN_13
* @arg @ref LL_GPIO_PIN_14
* @arg @ref LL_GPIO_PIN_15
* @arg @ref LL_GPIO_PIN_ALL
* @retval None
*/
__STATIC_INLINE void LL_GPIO_ResetOutputPin(GPIO_TypeDef *GPIOx, uint32_t PinMask)
{
WRITE_REG(GPIOx->BRR, PinMask);
}
/**
* @brief Toggle data value for several pin of dedicated port.
* @rmtoll ODR ODy LL_GPIO_TogglePin
* @param GPIOx GPIO Port
* @param PinMask This parameter can be a combination of the following values:
* @arg @ref LL_GPIO_PIN_0
* @arg @ref LL_GPIO_PIN_1
* @arg @ref LL_GPIO_PIN_2
* @arg @ref LL_GPIO_PIN_3
* @arg @ref LL_GPIO_PIN_4
* @arg @ref LL_GPIO_PIN_5
* @arg @ref LL_GPIO_PIN_6
* @arg @ref LL_GPIO_PIN_7
* @arg @ref LL_GPIO_PIN_8
* @arg @ref LL_GPIO_PIN_9
* @arg @ref LL_GPIO_PIN_10
* @arg @ref LL_GPIO_PIN_11
* @arg @ref LL_GPIO_PIN_12
* @arg @ref LL_GPIO_PIN_13
* @arg @ref LL_GPIO_PIN_14
* @arg @ref LL_GPIO_PIN_15
* @arg @ref LL_GPIO_PIN_ALL
* @retval None
*/
__STATIC_INLINE void LL_GPIO_TogglePin(GPIO_TypeDef *GPIOx, uint32_t PinMask)
{
uint32_t odr = READ_REG(GPIOx->ODR);
WRITE_REG(GPIOx->BSRR, ((odr & PinMask) << 16u) | (~odr & PinMask));
}
/**
* @}
*/
#if defined(USE_FULL_LL_DRIVER)
/** @defgroup GPIO_LL_EF_Init Initialization and de-initialization functions
* @{
*/
ErrorStatus LL_GPIO_DeInit(GPIO_TypeDef *GPIOx);
ErrorStatus LL_GPIO_Init(GPIO_TypeDef *GPIOx, LL_GPIO_InitTypeDef *GPIO_InitStruct);
void LL_GPIO_StructInit(LL_GPIO_InitTypeDef *GPIO_InitStruct);
/**
* @}
*/
#endif /* USE_FULL_LL_DRIVER */
/**
* @}
*/
/**
* @}
*/
#endif /* defined (GPIOA) || defined (GPIOB) || defined (GPIOC) || defined (GPIOD) || defined (GPIOE) || defined (GPIOH) */
/**
* @}
*/
#ifdef __cplusplus
}
#endif
#endif /* __STM32L0xx_LL_GPIO_H */
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

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/**
******************************************************************************
* @file stm32l0xx_ll_pwr.h
* @author MCD Application Team
* @brief Header file of PWR LL module.
******************************************************************************
* @attention
*
* <h2><center>&copy; Copyright(c) 2016 STMicroelectronics.
* All rights reserved.</center></h2>
*
* This software component is licensed by ST under BSD 3-Clause license,
* the "License"; You may not use this file except in compliance with the
* License. You may obtain a copy of the License at:
* opensource.org/licenses/BSD-3-Clause
*
******************************************************************************
*/
/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __STM32L0xx_LL_PWR_H
#define __STM32L0xx_LL_PWR_H
#ifdef __cplusplus
extern "C" {
#endif
/* Includes ------------------------------------------------------------------*/
#include "stm32l0xx.h"
/** @addtogroup STM32L0xx_LL_Driver
* @{
*/
#if defined(PWR)
/** @defgroup PWR_LL PWR
* @{
*/
/* Private types -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private constants ---------------------------------------------------------*/
/* Private macros ------------------------------------------------------------*/
/* Exported types ------------------------------------------------------------*/
/* Exported constants --------------------------------------------------------*/
/** @defgroup PWR_LL_Exported_Constants PWR Exported Constants
* @{
*/
/** @defgroup PWR_LL_EC_CLEAR_FLAG Clear Flags Defines
* @brief Flags defines which can be used with LL_PWR_WriteReg function
* @{
*/
#define LL_PWR_CR_CSBF PWR_CR_CSBF /*!< Clear standby flag */
#define LL_PWR_CR_CWUF PWR_CR_CWUF /*!< Clear wakeup flag */
/**
* @}
*/
/** @defgroup PWR_LL_EC_GET_FLAG Get Flags Defines
* @brief Flags defines which can be used with LL_PWR_ReadReg function
* @{
*/
#define LL_PWR_CSR_WUF PWR_CSR_WUF /*!< Wakeup flag */
#define LL_PWR_CSR_SBF PWR_CSR_SBF /*!< Standby flag */
#if defined(PWR_PVD_SUPPORT)
#define LL_PWR_CSR_PVDO PWR_CSR_PVDO /*!< Power voltage detector output flag */
#endif /* PWR_PVD_SUPPORT */
#if defined(PWR_CSR_VREFINTRDYF)
#define LL_PWR_CSR_VREFINTRDYF PWR_CSR_VREFINTRDYF /*!< VREFINT ready flag */
#endif /* PWR_CSR_VREFINTRDYF */
#define LL_PWR_CSR_VOS PWR_CSR_VOSF /*!< Voltage scaling select flag */
#define LL_PWR_CSR_REGLPF PWR_CSR_REGLPF /*!< Regulator low power flag */
#define LL_PWR_CSR_EWUP1 PWR_CSR_EWUP1 /*!< Enable WKUP pin 1 */
#define LL_PWR_CSR_EWUP2 PWR_CSR_EWUP2 /*!< Enable WKUP pin 2 */
#if defined(PWR_CSR_EWUP3)
#define LL_PWR_CSR_EWUP3 PWR_CSR_EWUP3 /*!< Enable WKUP pin 3 */
#endif /* PWR_CSR_EWUP3 */
/**
* @}
*/
/** @defgroup PWR_LL_EC_REGU_VOLTAGE Regulator Voltage
* @{
*/
#define LL_PWR_REGU_VOLTAGE_SCALE1 (PWR_CR_VOS_0) /*!< 1.8V (range 1) */
#define LL_PWR_REGU_VOLTAGE_SCALE2 (PWR_CR_VOS_1) /*!< 1.5V (range 2) */
#define LL_PWR_REGU_VOLTAGE_SCALE3 (PWR_CR_VOS_0 | PWR_CR_VOS_1) /*!< 1.2V (range 3) */
/**
* @}
*/
/** @defgroup PWR_LL_EC_MODE_PWR Mode Power
* @{
*/
#define LL_PWR_MODE_STOP 0x00000000U /*!< Enter Stop mode when the CPU enters deepsleep */
#define LL_PWR_MODE_STANDBY (PWR_CR_PDDS) /*!< Enter Standby mode when the CPU enters deepsleep */
/**
* @}
*/
/** @defgroup PWR_LL_EC_REGU_MODE_LP_MODES Regulator Mode In Low Power Modes
* @{
*/
#define LL_PWR_REGU_LPMODES_MAIN 0x00000000U /*!< Voltage regulator in main mode during deepsleep/sleep/low-power run mode */
#define LL_PWR_REGU_LPMODES_LOW_POWER (PWR_CR_LPSDSR) /*!< Voltage regulator in low-power mode during deepsleep/sleep/low-power run mode */
/**
* @}
*/
#if defined(PWR_CR_LPDS)
/** @defgroup PWR_LL_EC_REGU_MODE_DS_MODE Regulator Mode In Deep Sleep Mode
* @{
*/
#define LL_PWR_REGU_DSMODE_MAIN 0x00000000U /*!< Voltage regulator in main mode during deepsleep mode when PWR_CR_LPSDSR = 0 */
#define LL_PWR_REGU_DSMODE_LOW_POWER (PWR_CR_LPDS) /*!< Voltage regulator in low-power mode during deepsleep mode when PWR_CR_LPSDSR = 0 */
/**
* @}
*/
#endif /* PWR_CR_LPDS */
#if defined(PWR_PVD_SUPPORT)
/** @defgroup PWR_LL_EC_PVDLEVEL Power Voltage Detector Level
* @{
*/
#define LL_PWR_PVDLEVEL_0 (PWR_CR_PLS_LEV0) /*!< Voltage threshold detected by PVD 1.9 V */
#define LL_PWR_PVDLEVEL_1 (PWR_CR_PLS_LEV1) /*!< Voltage threshold detected by PVD 2.1 V */
#define LL_PWR_PVDLEVEL_2 (PWR_CR_PLS_LEV2) /*!< Voltage threshold detected by PVD 2.3 V */
#define LL_PWR_PVDLEVEL_3 (PWR_CR_PLS_LEV3) /*!< Voltage threshold detected by PVD 2.5 V */
#define LL_PWR_PVDLEVEL_4 (PWR_CR_PLS_LEV4) /*!< Voltage threshold detected by PVD 2.7 V */
#define LL_PWR_PVDLEVEL_5 (PWR_CR_PLS_LEV5) /*!< Voltage threshold detected by PVD 2.9 V */
#define LL_PWR_PVDLEVEL_6 (PWR_CR_PLS_LEV6) /*!< Voltage threshold detected by PVD 3.1 V */
#define LL_PWR_PVDLEVEL_7 (PWR_CR_PLS_LEV7) /*!< External input analog voltage (Compare internally to VREFINT) */
/**
* @}
*/
#endif /* PWR_PVD_SUPPORT */
/** @defgroup PWR_LL_EC_WAKEUP_PIN Wakeup Pins
* @{
*/
#define LL_PWR_WAKEUP_PIN1 (PWR_CSR_EWUP1) /*!< WKUP pin 1 : PA0 */
#define LL_PWR_WAKEUP_PIN2 (PWR_CSR_EWUP2) /*!< WKUP pin 2 : PC13 */
#if defined(PWR_CSR_EWUP3)
#define LL_PWR_WAKEUP_PIN3 (PWR_CSR_EWUP3) /*!< WKUP pin 3 : PE6 or PA2 according to device */
#endif /* PWR_CSR_EWUP3 */
/**
* @}
*/
/**
* @}
*/
/* Exported macro ------------------------------------------------------------*/
/** @defgroup PWR_LL_Exported_Macros PWR Exported Macros
* @{
*/
/** @defgroup PWR_LL_EM_WRITE_READ Common write and read registers Macros
* @{
*/
/**
* @brief Write a value in PWR register
* @param __REG__ Register to be written
* @param __VALUE__ Value to be written in the register
* @retval None
*/
#define LL_PWR_WriteReg(__REG__, __VALUE__) WRITE_REG(PWR->__REG__, (__VALUE__))
/**
* @brief Read a value in PWR register
* @param __REG__ Register to be read
* @retval Register value
*/
#define LL_PWR_ReadReg(__REG__) READ_REG(PWR->__REG__)
/**
* @}
*/
/**
* @}
*/
/* Exported functions --------------------------------------------------------*/
/** @defgroup PWR_LL_Exported_Functions PWR Exported Functions
* @{
*/
/** @defgroup PWR_LL_EF_Configuration Configuration
* @{
*/
/**
* @brief Switch the regulator from main mode to low-power mode
* @rmtoll CR LPRUN LL_PWR_EnableLowPowerRunMode
* @note Remind to set the regulator to low power before enabling
* LowPower run mode (bit @ref LL_PWR_REGU_LPMODES_LOW_POWER).
* @retval None
*/
__STATIC_INLINE void LL_PWR_EnableLowPowerRunMode(void)
{
SET_BIT(PWR->CR, PWR_CR_LPRUN);
}
/**
* @brief Switch the regulator from low-power mode to main mode
* @rmtoll CR LPRUN LL_PWR_DisableLowPowerRunMode
* @retval None
*/
__STATIC_INLINE void LL_PWR_DisableLowPowerRunMode(void)
{
CLEAR_BIT(PWR->CR, PWR_CR_LPRUN);
}
/**
* @brief Check if the regulator is in low-power mode
* @rmtoll CR LPRUN LL_PWR_IsEnabledLowPowerRunMode
* @retval State of bit (1 or 0).
*/
__STATIC_INLINE uint32_t LL_PWR_IsEnabledLowPowerRunMode(void)
{
return (READ_BIT(PWR->CR, PWR_CR_LPRUN) == (PWR_CR_LPRUN));
}
/**
* @brief Set voltage regulator to low-power and switch from
* run main mode to run low-power mode.
* @rmtoll CR LPSDSR LL_PWR_EnterLowPowerRunMode\n
* CR LPRUN LL_PWR_EnterLowPowerRunMode
* @note This "high level" function is introduced to provide functional
* compatibility with other families. Notice that the two registers
* have to be written sequentially, so this function is not atomic.
* To assure atomicity you can call separately the following functions:
* - @ref LL_PWR_SetRegulModeLP(@ref LL_PWR_REGU_LPMODES_LOW_POWER);
* - @ref LL_PWR_EnableLowPowerRunMode();
* @retval None
*/
__STATIC_INLINE void LL_PWR_EnterLowPowerRunMode(void)
{
SET_BIT(PWR->CR, PWR_CR_LPSDSR); /* => LL_PWR_SetRegulModeLP(LL_PWR_REGU_LPMODES_LOW_POWER) */
SET_BIT(PWR->CR, PWR_CR_LPRUN); /* => LL_PWR_EnableLowPowerRunMode() */
}
/**
* @brief Set voltage regulator to main and switch from
* run main mode to low-power mode.
* @rmtoll CR LPSDSR LL_PWR_ExitLowPowerRunMode\n
* CR LPRUN LL_PWR_ExitLowPowerRunMode
* @note This "high level" function is introduced to provide functional
* compatibility with other families. Notice that the two registers
* have to be written sequentially, so this function is not atomic.
* To assure atomicity you can call separately the following functions:
* - @ref LL_PWR_DisableLowPowerRunMode();
* - @ref LL_PWR_SetRegulModeLP(@ref LL_PWR_REGU_LPMODES_MAIN);
* @retval None
*/
__STATIC_INLINE void LL_PWR_ExitLowPowerRunMode(void)
{
CLEAR_BIT(PWR->CR, PWR_CR_LPRUN); /* => LL_PWR_DisableLowPowerRunMode() */
CLEAR_BIT(PWR->CR, PWR_CR_LPSDSR); /* => LL_PWR_SetRegulModeLP(LL_PWR_REGU_LPMODES_MAIN) */
}
/**
* @brief Set the main internal regulator output voltage
* @rmtoll CR VOS LL_PWR_SetRegulVoltageScaling
* @param VoltageScaling This parameter can be one of the following values:
* @arg @ref LL_PWR_REGU_VOLTAGE_SCALE1
* @arg @ref LL_PWR_REGU_VOLTAGE_SCALE2
* @arg @ref LL_PWR_REGU_VOLTAGE_SCALE3
* @retval None
*/
__STATIC_INLINE void LL_PWR_SetRegulVoltageScaling(uint32_t VoltageScaling)
{
MODIFY_REG(PWR->CR, PWR_CR_VOS, VoltageScaling);
}
/**
* @brief Get the main internal regulator output voltage
* @rmtoll CR VOS LL_PWR_GetRegulVoltageScaling
* @retval Returned value can be one of the following values:
* @arg @ref LL_PWR_REGU_VOLTAGE_SCALE1
* @arg @ref LL_PWR_REGU_VOLTAGE_SCALE2
* @arg @ref LL_PWR_REGU_VOLTAGE_SCALE3
*/
__STATIC_INLINE uint32_t LL_PWR_GetRegulVoltageScaling(void)
{
return (uint32_t)(READ_BIT(PWR->CR, PWR_CR_VOS));
}
/**
* @brief Enable access to the backup domain
* @rmtoll CR DBP LL_PWR_EnableBkUpAccess
* @retval None
*/
__STATIC_INLINE void LL_PWR_EnableBkUpAccess(void)
{
SET_BIT(PWR->CR, PWR_CR_DBP);
}
/**
* @brief Disable access to the backup domain
* @rmtoll CR DBP LL_PWR_DisableBkUpAccess
* @retval None
*/
__STATIC_INLINE void LL_PWR_DisableBkUpAccess(void)
{
CLEAR_BIT(PWR->CR, PWR_CR_DBP);
}
/**
* @brief Check if the backup domain is enabled
* @rmtoll CR DBP LL_PWR_IsEnabledBkUpAccess
* @retval State of bit (1 or 0).
*/
__STATIC_INLINE uint32_t LL_PWR_IsEnabledBkUpAccess(void)
{
return (READ_BIT(PWR->CR, PWR_CR_DBP) == (PWR_CR_DBP));
}
/**
* @brief Set voltage regulator mode during low power modes
* @rmtoll CR LPSDSR LL_PWR_SetRegulModeLP
* @param RegulMode This parameter can be one of the following values:
* @arg @ref LL_PWR_REGU_LPMODES_MAIN
* @arg @ref LL_PWR_REGU_LPMODES_LOW_POWER
* @retval None
*/
__STATIC_INLINE void LL_PWR_SetRegulModeLP(uint32_t RegulMode)
{
MODIFY_REG(PWR->CR, PWR_CR_LPSDSR, RegulMode);
}
/**
* @brief Get voltage regulator mode during low power modes
* @rmtoll CR LPSDSR LL_PWR_GetRegulModeLP
* @retval Returned value can be one of the following values:
* @arg @ref LL_PWR_REGU_LPMODES_MAIN
* @arg @ref LL_PWR_REGU_LPMODES_LOW_POWER
*/
__STATIC_INLINE uint32_t LL_PWR_GetRegulModeLP(void)
{
return (uint32_t)(READ_BIT(PWR->CR, PWR_CR_LPSDSR));
}
#if defined(PWR_CR_LPDS)
/**
* @brief Set voltage regulator mode during deep sleep mode
* @rmtoll CR LPDS LL_PWR_SetRegulModeDS
* @param RegulMode This parameter can be one of the following values:
* @arg @ref LL_PWR_REGU_DSMODE_MAIN
* @arg @ref LL_PWR_REGU_DSMODE_LOW_POWER
* @retval None
*/
__STATIC_INLINE void LL_PWR_SetRegulModeDS(uint32_t RegulMode)
{
MODIFY_REG(PWR->CR, PWR_CR_LPDS, RegulMode);
}
/**
* @brief Get voltage regulator mode during deep sleep mode
* @rmtoll CR LPDS LL_PWR_GetRegulModeDS
* @retval Returned value can be one of the following values:
* @arg @ref LL_PWR_REGU_DSMODE_MAIN
* @arg @ref LL_PWR_REGU_DSMODE_LOW_POWER
*/
__STATIC_INLINE uint32_t LL_PWR_GetRegulModeDS(void)
{
return (uint32_t)(READ_BIT(PWR->CR, PWR_CR_LPDS));
}
#endif /* PWR_CR_LPDS */
/**
* @brief Set power down mode when CPU enters deepsleep
* @rmtoll CR PDDS LL_PWR_SetPowerMode
* @param PDMode This parameter can be one of the following values:
* @arg @ref LL_PWR_MODE_STOP
* @arg @ref LL_PWR_MODE_STANDBY
* @note Set the regulator to low power (bit @ref LL_PWR_REGU_LPMODES_LOW_POWER)
* before setting MODE_STOP. If the regulator remains in "main mode",
* it consumes more power without providing any additional feature.
* In MODE_STANDBY the regulator is automatically off.
* @note It is forbidden to configure both EN_VREFINT=1 and ULP=1 if the device is
* in Stop mode or in Sleep/Low-power sleep mode. If the device is not in
* low-power mode, VREFINT is always enabled whatever the state of EN_VREFINT and ULP
* @retval None
*/
__STATIC_INLINE void LL_PWR_SetPowerMode(uint32_t PDMode)
{
MODIFY_REG(PWR->CR, PWR_CR_PDDS, PDMode);
}
/**
* @brief Get power down mode when CPU enters deepsleep
* @rmtoll CR PDDS LL_PWR_GetPowerMode
* @retval Returned value can be one of the following values:
* @arg @ref LL_PWR_MODE_STOP
* @arg @ref LL_PWR_MODE_STANDBY
*/
__STATIC_INLINE uint32_t LL_PWR_GetPowerMode(void)
{
return (uint32_t)(READ_BIT(PWR->CR, PWR_CR_PDDS));
}
#if defined(PWR_PVD_SUPPORT)
/**
* @brief Configure the voltage threshold detected by the Power Voltage Detector
* @rmtoll CR PLS LL_PWR_SetPVDLevel
* @param PVDLevel This parameter can be one of the following values:
* @arg @ref LL_PWR_PVDLEVEL_0
* @arg @ref LL_PWR_PVDLEVEL_1
* @arg @ref LL_PWR_PVDLEVEL_2
* @arg @ref LL_PWR_PVDLEVEL_3
* @arg @ref LL_PWR_PVDLEVEL_4
* @arg @ref LL_PWR_PVDLEVEL_5
* @arg @ref LL_PWR_PVDLEVEL_6
* @arg @ref LL_PWR_PVDLEVEL_7
* @retval None
*/
__STATIC_INLINE void LL_PWR_SetPVDLevel(uint32_t PVDLevel)
{
MODIFY_REG(PWR->CR, PWR_CR_PLS, PVDLevel);
}
/**
* @brief Get the voltage threshold detection
* @rmtoll CR PLS LL_PWR_GetPVDLevel
* @retval Returned value can be one of the following values:
* @arg @ref LL_PWR_PVDLEVEL_0
* @arg @ref LL_PWR_PVDLEVEL_1
* @arg @ref LL_PWR_PVDLEVEL_2
* @arg @ref LL_PWR_PVDLEVEL_3
* @arg @ref LL_PWR_PVDLEVEL_4
* @arg @ref LL_PWR_PVDLEVEL_5
* @arg @ref LL_PWR_PVDLEVEL_6
* @arg @ref LL_PWR_PVDLEVEL_7
*/
__STATIC_INLINE uint32_t LL_PWR_GetPVDLevel(void)
{
return (uint32_t)(READ_BIT(PWR->CR, PWR_CR_PLS));
}
/**
* @brief Enable Power Voltage Detector
* @rmtoll CR PVDE LL_PWR_EnablePVD
* @retval None
*/
__STATIC_INLINE void LL_PWR_EnablePVD(void)
{
SET_BIT(PWR->CR, PWR_CR_PVDE);
}
/**
* @brief Disable Power Voltage Detector
* @rmtoll CR PVDE LL_PWR_DisablePVD
* @retval None
*/
__STATIC_INLINE void LL_PWR_DisablePVD(void)
{
CLEAR_BIT(PWR->CR, PWR_CR_PVDE);
}
/**
* @brief Check if Power Voltage Detector is enabled
* @rmtoll CR PVDE LL_PWR_IsEnabledPVD
* @retval State of bit (1 or 0).
*/
__STATIC_INLINE uint32_t LL_PWR_IsEnabledPVD(void)
{
return (READ_BIT(PWR->CR, PWR_CR_PVDE) == (PWR_CR_PVDE));
}
#endif /* PWR_PVD_SUPPORT */
/**
* @brief Enable the WakeUp PINx functionality
* @rmtoll CSR EWUP1 LL_PWR_EnableWakeUpPin\n
* @rmtoll CSR EWUP2 LL_PWR_EnableWakeUpPin\n
* @rmtoll CSR EWUP3 LL_PWR_EnableWakeUpPin
* @param WakeUpPin This parameter can be one of the following values:
* @arg @ref LL_PWR_WAKEUP_PIN1
* @arg @ref LL_PWR_WAKEUP_PIN2
* @arg @ref LL_PWR_WAKEUP_PIN3 (*)
*
* (*) not available on all devices
* @retval None
*/
__STATIC_INLINE void LL_PWR_EnableWakeUpPin(uint32_t WakeUpPin)
{
SET_BIT(PWR->CSR, WakeUpPin);
}
/**
* @brief Disable the WakeUp PINx functionality
* @rmtoll CSR EWUP1 LL_PWR_DisableWakeUpPin\n
* @rmtoll CSR EWUP2 LL_PWR_DisableWakeUpPin\n
* @rmtoll CSR EWUP3 LL_PWR_DisableWakeUpPin
* @param WakeUpPin This parameter can be one of the following values:
* @arg @ref LL_PWR_WAKEUP_PIN1
* @arg @ref LL_PWR_WAKEUP_PIN2
* @arg @ref LL_PWR_WAKEUP_PIN3 (*)
*
* (*) not available on all devices
* @retval None
*/
__STATIC_INLINE void LL_PWR_DisableWakeUpPin(uint32_t WakeUpPin)
{
CLEAR_BIT(PWR->CSR, WakeUpPin);
}
/**
* @brief Check if the WakeUp PINx functionality is enabled
* @rmtoll CSR EWUP1 LL_PWR_IsEnabledWakeUpPin\n
* @rmtoll CSR EWUP2 LL_PWR_IsEnabledWakeUpPin\n
* @rmtoll CSR EWUP3 LL_PWR_IsEnabledWakeUpPin
* @param WakeUpPin This parameter can be one of the following values:
* @arg @ref LL_PWR_WAKEUP_PIN1
* @arg @ref LL_PWR_WAKEUP_PIN2
* @arg @ref LL_PWR_WAKEUP_PIN3 (*)
*
* (*) not available on all devices
* @retval State of bit (1 or 0).
*/
__STATIC_INLINE uint32_t LL_PWR_IsEnabledWakeUpPin(uint32_t WakeUpPin)
{
return (READ_BIT(PWR->CSR, WakeUpPin) == (WakeUpPin));
}
/**
* @brief Enable ultra low-power mode by enabling VREFINT switch off in low-power modes
* @rmtoll CR ULP LL_PWR_EnableUltraLowPower
* @retval None
*/
__STATIC_INLINE void LL_PWR_EnableUltraLowPower(void)
{
SET_BIT(PWR->CR, PWR_CR_ULP);
}
/**
* @brief Disable ultra low-power mode by disabling VREFINT switch off in low-power modes
* @rmtoll CR ULP LL_PWR_DisableUltraLowPower
* @retval None
*/
__STATIC_INLINE void LL_PWR_DisableUltraLowPower(void)
{
CLEAR_BIT(PWR->CR, PWR_CR_ULP);
}
/**
* @brief Check if ultra low-power mode is enabled by checking if VREFINT switch off in low-power modes is enabled
* @rmtoll CR ULP LL_PWR_IsEnabledUltraLowPower
* @retval State of bit (1 or 0).
*/
__STATIC_INLINE uint32_t LL_PWR_IsEnabledUltraLowPower(void)
{
return (READ_BIT(PWR->CR, PWR_CR_ULP) == (PWR_CR_ULP));
}
/**
* @brief Enable fast wakeup by ignoring VREFINT startup time when exiting from low-power mode
* @rmtoll CR FWU LL_PWR_EnableFastWakeUp
* @note Works in conjunction with ultra low power mode.
* @retval None
*/
__STATIC_INLINE void LL_PWR_EnableFastWakeUp(void)
{
SET_BIT(PWR->CR, PWR_CR_FWU);
}
/**
* @brief Disable fast wakeup by waiting VREFINT startup time when exiting from low-power mode
* @rmtoll CR FWU LL_PWR_DisableFastWakeUp
* @note Works in conjunction with ultra low power mode.
* @retval None
*/
__STATIC_INLINE void LL_PWR_DisableFastWakeUp(void)
{
CLEAR_BIT(PWR->CR, PWR_CR_FWU);
}
/**
* @brief Check if fast wakeup is enabled by checking if VREFINT startup time when exiting from low-power mode is ignored
* @rmtoll CR FWU LL_PWR_IsEnabledFastWakeUp
* @retval State of bit (1 or 0).
*/
__STATIC_INLINE uint32_t LL_PWR_IsEnabledFastWakeUp(void)
{
return (READ_BIT(PWR->CR, PWR_CR_FWU) == (PWR_CR_FWU));
}
/**
* @brief Enable non-volatile memory (Flash and EEPROM) keeping off feature when exiting from low-power mode
* @rmtoll CR DS_EE_KOFF LL_PWR_EnableNVMKeptOff
* @note When enabled, after entering low-power mode (Stop or Standby only), if RUN_PD of FLASH_ACR register
* is also set, the Flash memory will not be woken up when exiting from deepsleep mode.
* When enabled, the EEPROM will not be woken up when exiting from low-power mode (if the bit RUN_PD is set)
* @retval None
*/
__STATIC_INLINE void LL_PWR_EnableNVMKeptOff(void)
{
SET_BIT(PWR->CR, PWR_CR_DSEEKOFF);
}
/**
* @brief Disable non-volatile memory (Flash and EEPROM) keeping off feature when exiting from low-power mode
* @rmtoll CR DS_EE_KOFF LL_PWR_DisableNVMKeptOff
* @note When disabled, Flash memory is woken up when exiting from deepsleep mode even if the bit RUN_PD is set
* @retval None
*/
__STATIC_INLINE void LL_PWR_DisableNVMKeptOff(void)
{
CLEAR_BIT(PWR->CR, PWR_CR_DSEEKOFF);
}
/**
* @brief Check if non-volatile memory (Flash and EEPROM) keeping off feature when exiting from low-power mode is enabled
* @rmtoll CR DS_EE_KOFF LL_PWR_IsEnabledNVMKeptOff
* @retval State of bit (1 or 0).
*/
__STATIC_INLINE uint32_t LL_PWR_IsEnabledNVMKeptOff(void)
{
return (READ_BIT(PWR->CR, PWR_CR_DSEEKOFF) == (PWR_CR_DSEEKOFF));
}
/**
* @}
*/
/** @defgroup PWR_LL_EF_FLAG_Management FLAG_Management
* @{
*/
/**
* @brief Get Wake-up Flag
* @rmtoll CSR WUF LL_PWR_IsActiveFlag_WU
* @retval State of bit (1 or 0).
*/
__STATIC_INLINE uint32_t LL_PWR_IsActiveFlag_WU(void)
{
return (READ_BIT(PWR->CSR, PWR_CSR_WUF) == (PWR_CSR_WUF));
}
/**
* @brief Get Standby Flag
* @rmtoll CSR SBF LL_PWR_IsActiveFlag_SB
* @retval State of bit (1 or 0).
*/
__STATIC_INLINE uint32_t LL_PWR_IsActiveFlag_SB(void)
{
return (READ_BIT(PWR->CSR, PWR_CSR_SBF) == (PWR_CSR_SBF));
}
#if defined(PWR_PVD_SUPPORT)
/**
* @brief Indicate whether VDD voltage is below the selected PVD threshold
* @rmtoll CSR PVDO LL_PWR_IsActiveFlag_PVDO
* @retval State of bit (1 or 0).
*/
__STATIC_INLINE uint32_t LL_PWR_IsActiveFlag_PVDO(void)
{
return (READ_BIT(PWR->CSR, PWR_CSR_PVDO) == (PWR_CSR_PVDO));
}
#endif /* PWR_PVD_SUPPORT */
#if defined(PWR_CSR_VREFINTRDYF)
/**
* @brief Get Internal Reference VrefInt Flag
* @rmtoll CSR VREFINTRDYF LL_PWR_IsActiveFlag_VREFINTRDY
* @retval State of bit (1 or 0).
*/
__STATIC_INLINE uint32_t LL_PWR_IsActiveFlag_VREFINTRDY(void)
{
return (READ_BIT(PWR->CSR, PWR_CSR_VREFINTRDYF) == (PWR_CSR_VREFINTRDYF));
}
#endif /* PWR_CSR_VREFINTRDYF */
/**
* @brief Indicate whether the regulator is ready in the selected voltage range or if its output voltage is still changing to the required voltage level
* @rmtoll CSR VOSF LL_PWR_IsActiveFlag_VOS
* @retval State of bit (1 or 0).
*/
__STATIC_INLINE uint32_t LL_PWR_IsActiveFlag_VOS(void)
{
return (READ_BIT(PWR->CSR, LL_PWR_CSR_VOS) == (LL_PWR_CSR_VOS));
}
/**
* @brief Indicate whether the regulator is ready in main mode or is in low-power mode
* @rmtoll CSR REGLPF LL_PWR_IsActiveFlag_REGLPF
* @note Take care, return value "0" means the regulator is ready. Return value "1" means the output voltage range is still changing.
* @retval State of bit (1 or 0).
*/
__STATIC_INLINE uint32_t LL_PWR_IsActiveFlag_REGLPF(void)
{
return (READ_BIT(PWR->CSR, PWR_CSR_REGLPF) == (PWR_CSR_REGLPF));
}
/**
* @brief Clear Standby Flag
* @rmtoll CR CSBF LL_PWR_ClearFlag_SB
* @retval None
*/
__STATIC_INLINE void LL_PWR_ClearFlag_SB(void)
{
SET_BIT(PWR->CR, PWR_CR_CSBF);
}
/**
* @brief Clear Wake-up Flags
* @rmtoll CR CWUF LL_PWR_ClearFlag_WU
* @retval None
*/
__STATIC_INLINE void LL_PWR_ClearFlag_WU(void)
{
SET_BIT(PWR->CR, PWR_CR_CWUF);
}
#if defined(USE_FULL_LL_DRIVER)
/** @defgroup PWR_LL_EF_Init De-initialization function
* @{
*/
ErrorStatus LL_PWR_DeInit(void);
/**
* @}
*/
#endif /* USE_FULL_LL_DRIVER */
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
#endif /* defined(PWR) */
/**
* @}
*/
#ifdef __cplusplus
}
#endif
#endif /* __STM32L0xx_LL_PWR_H */
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

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/**
******************************************************************************
* @file stm32l0xx_ll_utils.h
* @author MCD Application Team
* @brief Header file of UTILS LL module.
@verbatim
==============================================================================
##### How to use this driver #####
==============================================================================
[..]
The LL UTILS driver contains a set of generic APIs that can be
used by user:
(+) Device electronic signature
(+) Timing functions
(+) PLL configuration functions
@endverbatim
******************************************************************************
* @attention
*
* <h2><center>&copy; Copyright(c) 2016 STMicroelectronics.
* All rights reserved.</center></h2>
*
* This software component is licensed by ST under BSD 3-Clause license,
* the "License"; You may not use this file except in compliance with the
* License. You may obtain a copy of the License at:
* opensource.org/licenses/BSD-3-Clause
*
******************************************************************************
*/
/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __STM32L0xx_LL_UTILS_H
#define __STM32L0xx_LL_UTILS_H
#ifdef __cplusplus
extern "C" {
#endif
/* Includes ------------------------------------------------------------------*/
#include "stm32l0xx.h"
/** @addtogroup STM32L0xx_LL_Driver
* @{
*/
/** @defgroup UTILS_LL UTILS
* @{
*/
/* Private types -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private constants ---------------------------------------------------------*/
/** @defgroup UTILS_LL_Private_Constants UTILS Private Constants
* @{
*/
/* Max delay can be used in LL_mDelay */
#define LL_MAX_DELAY 0xFFFFFFFFU
/**
* @brief Unique device ID register base address
*/
#define UID_BASE_ADDRESS UID_BASE
/**
* @brief Flash size data register base address
*/
#define FLASHSIZE_BASE_ADDRESS FLASHSIZE_BASE
/**
* @}
*/
/* Private macros ------------------------------------------------------------*/
/** @defgroup UTILS_LL_Private_Macros UTILS Private Macros
* @{
*/
/**
* @}
*/
/* Exported types ------------------------------------------------------------*/
/** @defgroup UTILS_LL_ES_INIT UTILS Exported structures
* @{
*/
/**
* @brief UTILS PLL structure definition
*/
typedef struct
{
uint32_t PLLMul; /*!< Multiplication factor for PLL VCO input clock.
This parameter can be a value of @ref RCC_LL_EC_PLL_MUL
This feature can be modified afterwards using unitary function
@ref LL_RCC_PLL_ConfigDomain_SYS(). */
uint32_t PLLDiv; /*!< Division factor for PLL VCO output clock.
This parameter can be a value of @ref RCC_LL_EC_PLL_DIV
This feature can be modified afterwards using unitary function
@ref LL_RCC_PLL_ConfigDomain_SYS(). */
} LL_UTILS_PLLInitTypeDef;
/**
* @brief UTILS System, AHB and APB buses clock configuration structure definition
*/
typedef struct
{
uint32_t AHBCLKDivider; /*!< The AHB clock (HCLK) divider. This clock is derived from the system clock (SYSCLK).
This parameter can be a value of @ref RCC_LL_EC_SYSCLK_DIV
This feature can be modified afterwards using unitary function
@ref LL_RCC_SetAHBPrescaler(). */
uint32_t APB1CLKDivider; /*!< The APB1 clock (PCLK1) divider. This clock is derived from the AHB clock (HCLK).
This parameter can be a value of @ref RCC_LL_EC_APB1_DIV
This feature can be modified afterwards using unitary function
@ref LL_RCC_SetAPB1Prescaler(). */
uint32_t APB2CLKDivider; /*!< The APB2 clock (PCLK2) divider. This clock is derived from the AHB clock (HCLK).
This parameter can be a value of @ref RCC_LL_EC_APB2_DIV
This feature can be modified afterwards using unitary function
@ref LL_RCC_SetAPB2Prescaler(). */
} LL_UTILS_ClkInitTypeDef;
/**
* @}
*/
/* Exported constants --------------------------------------------------------*/
/** @defgroup UTILS_LL_Exported_Constants UTILS Exported Constants
* @{
*/
/** @defgroup UTILS_EC_HSE_BYPASS HSE Bypass activation
* @{
*/
#define LL_UTILS_HSEBYPASS_OFF 0x00000000U /*!< HSE Bypass is not enabled */
#define LL_UTILS_HSEBYPASS_ON 0x00000001U /*!< HSE Bypass is enabled */
/**
* @}
*/
/**
* @}
*/
/* Exported macro ------------------------------------------------------------*/
/* Exported functions --------------------------------------------------------*/
/** @defgroup UTILS_LL_Exported_Functions UTILS Exported Functions
* @{
*/
/** @defgroup UTILS_EF_DEVICE_ELECTRONIC_SIGNATURE DEVICE ELECTRONIC SIGNATURE
* @{
*/
/**
* @brief Get Word0 of the unique device identifier (UID based on 96 bits)
* @retval UID[31:0]
*/
__STATIC_INLINE uint32_t LL_GetUID_Word0(void)
{
return (uint32_t)(READ_REG(*((uint32_t *)UID_BASE_ADDRESS)));
}
/**
* @brief Get Word1 of the unique device identifier (UID based on 96 bits)
* @retval UID[63:32]
*/
__STATIC_INLINE uint32_t LL_GetUID_Word1(void)
{
return (uint32_t)(READ_REG(*((uint32_t *)(UID_BASE_ADDRESS + 0x04U))));
}
/**
* @brief Get Word2 of the unique device identifier (UID based on 96 bits)
* @retval UID[95:64]
*/
__STATIC_INLINE uint32_t LL_GetUID_Word2(void)
{
return (uint32_t)(READ_REG(*((uint32_t *)(UID_BASE_ADDRESS + 0x14U))));
}
/**
* @brief Get Flash memory size
* @note This bitfield indicates the size of the device Flash memory expressed in
* Kbytes. As an example, 0x040 corresponds to 64 Kbytes.
* @retval FLASH_SIZE[15:0]: Flash memory size
*/
__STATIC_INLINE uint32_t LL_GetFlashSize(void)
{
return (uint32_t)(READ_REG(*((uint32_t *)FLASHSIZE_BASE_ADDRESS)) & 0xFFFF);
}
/**
* @}
*/
/** @defgroup UTILS_LL_EF_DELAY DELAY
* @{
*/
/**
* @brief This function configures the Cortex-M SysTick source of the time base.
* @param HCLKFrequency HCLK frequency in Hz (can be calculated thanks to RCC helper macro)
* @note When a RTOS is used, it is recommended to avoid changing the SysTick
* configuration by calling this function, for a delay use rather osDelay RTOS service.
* @param Ticks Number of ticks
* @retval None
*/
__STATIC_INLINE void LL_InitTick(uint32_t HCLKFrequency, uint32_t Ticks)
{
/* Configure the SysTick to have interrupt in 1ms time base */
SysTick->LOAD = (uint32_t)((HCLKFrequency / Ticks) - 1UL); /* set reload register */
SysTick->VAL = 0UL; /* Load the SysTick Counter Value */
SysTick->CTRL = SysTick_CTRL_CLKSOURCE_Msk |
SysTick_CTRL_ENABLE_Msk; /* Enable the Systick Timer */
}
void LL_Init1msTick(uint32_t HCLKFrequency);
void LL_mDelay(uint32_t Delay);
/**
* @}
*/
/** @defgroup UTILS_EF_SYSTEM SYSTEM
* @{
*/
void LL_SetSystemCoreClock(uint32_t HCLKFrequency);
ErrorStatus LL_SetFlashLatency(uint32_t HCLKFrequency);
ErrorStatus LL_PLL_ConfigSystemClock_HSI(LL_UTILS_PLLInitTypeDef *UTILS_PLLInitStruct,
LL_UTILS_ClkInitTypeDef *UTILS_ClkInitStruct);
ErrorStatus LL_PLL_ConfigSystemClock_HSE(uint32_t HSEFrequency, uint32_t HSEBypass,
LL_UTILS_PLLInitTypeDef *UTILS_PLLInitStruct, LL_UTILS_ClkInitTypeDef *UTILS_ClkInitStruct);
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
#ifdef __cplusplus
}
#endif
#endif /* __STM32L0xx_LL_UTILS_H */
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

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/**
******************************************************************************
* @file stm32l0xx_hal_uart_ex.c
* @author MCD Application Team
* @brief Extended UART HAL module driver.
* This file provides firmware functions to manage the following extended
* functionalities of the Universal Asynchronous Receiver Transmitter Peripheral (UART).
* + Initialization and de-initialization functions
* + Peripheral Control functions
*
*
@verbatim
==============================================================================
##### UART peripheral extended features #####
==============================================================================
(#) Declare a UART_HandleTypeDef handle structure.
(#) For the UART RS485 Driver Enable mode, initialize the UART registers
by calling the HAL_RS485Ex_Init() API.
@endverbatim
******************************************************************************
* @attention
*
* <h2><center>&copy; Copyright (c) 2016 STMicroelectronics.
* All rights reserved.</center></h2>
*
* This software component is licensed by ST under BSD 3-Clause license,
* the "License"; You may not use this file except in compliance with the
* License. You may obtain a copy of the License at:
* opensource.org/licenses/BSD-3-Clause
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "stm32l0xx_hal.h"
/** @addtogroup STM32L0xx_HAL_Driver
* @{
*/
/** @defgroup UARTEx UARTEx
* @brief UART Extended HAL module driver
* @{
*/
#ifdef HAL_UART_MODULE_ENABLED
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macros ------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
/** @defgroup UARTEx_Private_Functions UARTEx Private Functions
* @{
*/
static void UARTEx_Wakeup_AddressConfig(UART_HandleTypeDef *huart, UART_WakeUpTypeDef WakeUpSelection);
/**
* @}
*/
/* Exported functions --------------------------------------------------------*/
/** @defgroup UARTEx_Exported_Functions UARTEx Exported Functions
* @{
*/
/** @defgroup UARTEx_Exported_Functions_Group1 Initialization and de-initialization functions
* @brief Extended Initialization and Configuration Functions
*
@verbatim
===============================================================================
##### Initialization and Configuration functions #####
===============================================================================
[..]
This subsection provides a set of functions allowing to initialize the USARTx or the UARTy
in asynchronous mode.
(+) For the asynchronous mode the parameters below can be configured:
(++) Baud Rate
(++) Word Length
(++) Stop Bit
(++) Parity: If the parity is enabled, then the MSB bit of the data written
in the data register is transmitted but is changed by the parity bit.
(++) Hardware flow control
(++) Receiver/transmitter modes
(++) Over Sampling Method
(++) One-Bit Sampling Method
(+) For the asynchronous mode, the following advanced features can be configured as well:
(++) TX and/or RX pin level inversion
(++) data logical level inversion
(++) RX and TX pins swap
(++) RX overrun detection disabling
(++) DMA disabling on RX error
(++) MSB first on communication line
(++) auto Baud rate detection
[..]
The HAL_RS485Ex_Init() API follows the UART RS485 mode configuration
procedures (details for the procedures are available in reference manual).
@endverbatim
Depending on the frame length defined by the M1 and M0 bits (7-bit,
8-bit or 9-bit), the possible UART formats are listed in the
following table.
Table 1. UART frame format.
+-----------------------------------------------------------------------+
| M1 bit | M0 bit | PCE bit | UART frame |
|---------|---------|-----------|---------------------------------------|
| 0 | 0 | 0 | | SB | 8 bit data | STB | |
|---------|---------|-----------|---------------------------------------|
| 0 | 0 | 1 | | SB | 7 bit data | PB | STB | |
|---------|---------|-----------|---------------------------------------|
| 0 | 1 | 0 | | SB | 9 bit data | STB | |
|---------|---------|-----------|---------------------------------------|
| 0 | 1 | 1 | | SB | 8 bit data | PB | STB | |
|---------|---------|-----------|---------------------------------------|
| 1 | 0 | 0 | | SB | 7 bit data | STB | |
|---------|---------|-----------|---------------------------------------|
| 1 | 0 | 1 | | SB | 6 bit data | PB | STB | |
+-----------------------------------------------------------------------+
* @{
*/
/**
* @brief Initialize the RS485 Driver enable feature according to the specified
* parameters in the UART_InitTypeDef and creates the associated handle.
* @param huart UART handle.
* @param Polarity Select the driver enable polarity.
* This parameter can be one of the following values:
* @arg @ref UART_DE_POLARITY_HIGH DE signal is active high
* @arg @ref UART_DE_POLARITY_LOW DE signal is active low
* @param AssertionTime Driver Enable assertion time:
* 5-bit value defining the time between the activation of the DE (Driver Enable)
* signal and the beginning of the start bit. It is expressed in sample time
* units (1/8 or 1/16 bit time, depending on the oversampling rate)
* @param DeassertionTime Driver Enable deassertion time:
* 5-bit value defining the time between the end of the last stop bit, in a
* transmitted message, and the de-activation of the DE (Driver Enable) signal.
* It is expressed in sample time units (1/8 or 1/16 bit time, depending on the
* oversampling rate).
* @retval HAL status
*/
HAL_StatusTypeDef HAL_RS485Ex_Init(UART_HandleTypeDef *huart, uint32_t Polarity, uint32_t AssertionTime,
uint32_t DeassertionTime)
{
uint32_t temp;
/* Check the UART handle allocation */
if (huart == NULL)
{
return HAL_ERROR;
}
/* Check the Driver Enable UART instance */
assert_param(IS_UART_DRIVER_ENABLE_INSTANCE(huart->Instance));
/* Check the Driver Enable polarity */
assert_param(IS_UART_DE_POLARITY(Polarity));
/* Check the Driver Enable assertion time */
assert_param(IS_UART_ASSERTIONTIME(AssertionTime));
/* Check the Driver Enable deassertion time */
assert_param(IS_UART_DEASSERTIONTIME(DeassertionTime));
if (huart->gState == HAL_UART_STATE_RESET)
{
/* Allocate lock resource and initialize it */
huart->Lock = HAL_UNLOCKED;
#if (USE_HAL_UART_REGISTER_CALLBACKS == 1)
UART_InitCallbacksToDefault(huart);
if (huart->MspInitCallback == NULL)
{
huart->MspInitCallback = HAL_UART_MspInit;
}
/* Init the low level hardware */
huart->MspInitCallback(huart);
#else
/* Init the low level hardware : GPIO, CLOCK, CORTEX */
HAL_UART_MspInit(huart);
#endif /* (USE_HAL_UART_REGISTER_CALLBACKS) */
}
huart->gState = HAL_UART_STATE_BUSY;
/* Disable the Peripheral */
__HAL_UART_DISABLE(huart);
/* Set the UART Communication parameters */
if (UART_SetConfig(huart) == HAL_ERROR)
{
return HAL_ERROR;
}
if (huart->AdvancedInit.AdvFeatureInit != UART_ADVFEATURE_NO_INIT)
{
UART_AdvFeatureConfig(huart);
}
/* Enable the Driver Enable mode by setting the DEM bit in the CR3 register */
SET_BIT(huart->Instance->CR3, USART_CR3_DEM);
/* Set the Driver Enable polarity */
MODIFY_REG(huart->Instance->CR3, USART_CR3_DEP, Polarity);
/* Set the Driver Enable assertion and deassertion times */
temp = (AssertionTime << UART_CR1_DEAT_ADDRESS_LSB_POS);
temp |= (DeassertionTime << UART_CR1_DEDT_ADDRESS_LSB_POS);
MODIFY_REG(huart->Instance->CR1, (USART_CR1_DEDT | USART_CR1_DEAT), temp);
/* Enable the Peripheral */
__HAL_UART_ENABLE(huart);
/* TEACK and/or REACK to check before moving huart->gState and huart->RxState to Ready */
return (UART_CheckIdleState(huart));
}
/**
* @}
*/
/** @defgroup UARTEx_Exported_Functions_Group2 IO operation functions
* @brief Extended functions
*
@verbatim
===============================================================================
##### IO operation functions #####
===============================================================================
This subsection provides a set of Wakeup and FIFO mode related callback functions.
(#) Wakeup from Stop mode Callback:
(+) HAL_UARTEx_WakeupCallback()
@endverbatim
* @{
*/
/**
* @brief UART wakeup from Stop mode callback.
* @param huart UART handle.
* @retval None
*/
__weak void HAL_UARTEx_WakeupCallback(UART_HandleTypeDef *huart)
{
/* Prevent unused argument(s) compilation warning */
UNUSED(huart);
/* NOTE : This function should not be modified, when the callback is needed,
the HAL_UARTEx_WakeupCallback can be implemented in the user file.
*/
}
/**
* @}
*/
/** @defgroup UARTEx_Exported_Functions_Group3 Peripheral Control functions
* @brief Extended Peripheral Control functions
*
@verbatim
===============================================================================
##### Peripheral Control functions #####
===============================================================================
[..] This section provides the following functions:
(+) HAL_UARTEx_EnableClockStopMode() API enables the UART clock (HSI or LSE only) during stop mode
(+) HAL_UARTEx_DisableClockStopMode() API disables the above functionality
(+) HAL_MultiProcessorEx_AddressLength_Set() API optionally sets the UART node address
detection length to more than 4 bits for multiprocessor address mark wake up.
(+) HAL_UARTEx_StopModeWakeUpSourceConfig() API defines the wake-up from stop mode
trigger: address match, Start Bit detection or RXNE bit status.
(+) HAL_UARTEx_EnableStopMode() API enables the UART to wake up the MCU from stop mode
(+) HAL_UARTEx_DisableStopMode() API disables the above functionality
[..] This subsection also provides a set of additional functions providing enhanced reception
services to user. (For example, these functions allow application to handle use cases
where number of data to be received is unknown).
(#) Compared to standard reception services which only consider number of received
data elements as reception completion criteria, these functions also consider additional events
as triggers for updating reception status to caller :
(+) Detection of inactivity period (RX line has not been active for a given period).
(++) RX inactivity detected by IDLE event, i.e. RX line has been in idle state (normally high state)
for 1 frame time, after last received byte.
(++) RX inactivity detected by RTO, i.e. line has been in idle state
for a programmable time, after last received byte.
(+) Detection that a specific character has been received.
(#) There are two mode of transfer:
(+) Blocking mode: The reception is performed in polling mode, until either expected number of data is received,
or till IDLE event occurs. Reception is handled only during function execution.
When function exits, no data reception could occur. HAL status and number of actually received data elements,
are returned by function after finishing transfer.
(+) Non-Blocking mode: The reception is performed using Interrupts or DMA.
These API's return the HAL status.
The end of the data processing will be indicated through the
dedicated UART IRQ when using Interrupt mode or the DMA IRQ when using DMA mode.
The HAL_UARTEx_RxEventCallback() user callback will be executed during Receive process
The HAL_UART_ErrorCallback()user callback will be executed when a reception error is detected.
(#) Blocking mode API:
(+) HAL_UARTEx_ReceiveToIdle()
(#) Non-Blocking mode API with Interrupt:
(+) HAL_UARTEx_ReceiveToIdle_IT()
(#) Non-Blocking mode API with DMA:
(+) HAL_UARTEx_ReceiveToIdle_DMA()
@endverbatim
* @{
*/
/**
* @brief Keep UART Clock enabled when in Stop Mode.
* @note When the USART clock source is configured to be LSE or HSI, it is possible to keep enabled
* this clock during STOP mode by setting the UCESM bit in USART_CR3 control register.
* @note When LPUART is used to wakeup from stop with LSE is selected as LPUART clock source,
* and desired baud rate is 9600 baud, the bit UCESM bit in LPUART_CR3 control register must be set.
* @param huart UART handle.
* @retval HAL status
*/
HAL_StatusTypeDef HAL_UARTEx_EnableClockStopMode(UART_HandleTypeDef *huart)
{
/* Process Locked */
__HAL_LOCK(huart);
/* Set UCESM bit */
SET_BIT(huart->Instance->CR3, USART_CR3_UCESM);
/* Process Unlocked */
__HAL_UNLOCK(huart);
return HAL_OK;
}
/**
* @brief Disable UART Clock when in Stop Mode.
* @param huart UART handle.
* @retval HAL status
*/
HAL_StatusTypeDef HAL_UARTEx_DisableClockStopMode(UART_HandleTypeDef *huart)
{
/* Process Locked */
__HAL_LOCK(huart);
/* Clear UCESM bit */
CLEAR_BIT(huart->Instance->CR3, USART_CR3_UCESM);
/* Process Unlocked */
__HAL_UNLOCK(huart);
return HAL_OK;
}
/**
* @brief By default in multiprocessor mode, when the wake up method is set
* to address mark, the UART handles only 4-bit long addresses detection;
* this API allows to enable longer addresses detection (6-, 7- or 8-bit
* long).
* @note Addresses detection lengths are: 6-bit address detection in 7-bit data mode,
* 7-bit address detection in 8-bit data mode, 8-bit address detection in 9-bit data mode.
* @param huart UART handle.
* @param AddressLength This parameter can be one of the following values:
* @arg @ref UART_ADDRESS_DETECT_4B 4-bit long address
* @arg @ref UART_ADDRESS_DETECT_7B 6-, 7- or 8-bit long address
* @retval HAL status
*/
HAL_StatusTypeDef HAL_MultiProcessorEx_AddressLength_Set(UART_HandleTypeDef *huart, uint32_t AddressLength)
{
/* Check the UART handle allocation */
if (huart == NULL)
{
return HAL_ERROR;
}
/* Check the address length parameter */
assert_param(IS_UART_ADDRESSLENGTH_DETECT(AddressLength));
huart->gState = HAL_UART_STATE_BUSY;
/* Disable the Peripheral */
__HAL_UART_DISABLE(huart);
/* Set the address length */
MODIFY_REG(huart->Instance->CR2, USART_CR2_ADDM7, AddressLength);
/* Enable the Peripheral */
__HAL_UART_ENABLE(huart);
/* TEACK and/or REACK to check before moving huart->gState to Ready */
return (UART_CheckIdleState(huart));
}
/**
* @brief Set Wakeup from Stop mode interrupt flag selection.
* @note It is the application responsibility to enable the interrupt used as
* usart_wkup interrupt source before entering low-power mode.
* @param huart UART handle.
* @param WakeUpSelection Address match, Start Bit detection or RXNE/RXFNE bit status.
* This parameter can be one of the following values:
* @arg @ref UART_WAKEUP_ON_ADDRESS
* @arg @ref UART_WAKEUP_ON_STARTBIT
* @arg @ref UART_WAKEUP_ON_READDATA_NONEMPTY
* @retval HAL status
*/
HAL_StatusTypeDef HAL_UARTEx_StopModeWakeUpSourceConfig(UART_HandleTypeDef *huart, UART_WakeUpTypeDef WakeUpSelection)
{
HAL_StatusTypeDef status = HAL_OK;
uint32_t tickstart;
/* check the wake-up from stop mode UART instance */
assert_param(IS_UART_WAKEUP_FROMSTOP_INSTANCE(huart->Instance));
/* check the wake-up selection parameter */
assert_param(IS_UART_WAKEUP_SELECTION(WakeUpSelection.WakeUpEvent));
/* Process Locked */
__HAL_LOCK(huart);
huart->gState = HAL_UART_STATE_BUSY;
/* Disable the Peripheral */
__HAL_UART_DISABLE(huart);
/* Set the wake-up selection scheme */
MODIFY_REG(huart->Instance->CR3, USART_CR3_WUS, WakeUpSelection.WakeUpEvent);
if (WakeUpSelection.WakeUpEvent == UART_WAKEUP_ON_ADDRESS)
{
UARTEx_Wakeup_AddressConfig(huart, WakeUpSelection);
}
/* Enable the Peripheral */
__HAL_UART_ENABLE(huart);
/* Init tickstart for timeout management */
tickstart = HAL_GetTick();
/* Wait until REACK flag is set */
if (UART_WaitOnFlagUntilTimeout(huart, USART_ISR_REACK, RESET, tickstart, HAL_UART_TIMEOUT_VALUE) != HAL_OK)
{
status = HAL_TIMEOUT;
}
else
{
/* Initialize the UART State */
huart->gState = HAL_UART_STATE_READY;
}
/* Process Unlocked */
__HAL_UNLOCK(huart);
return status;
}
/**
* @brief Enable UART Stop Mode.
* @note The UART is able to wake up the MCU from Stop 1 mode as long as UART clock is HSI or LSE.
* @param huart UART handle.
* @retval HAL status
*/
HAL_StatusTypeDef HAL_UARTEx_EnableStopMode(UART_HandleTypeDef *huart)
{
/* Process Locked */
__HAL_LOCK(huart);
/* Set UESM bit */
SET_BIT(huart->Instance->CR1, USART_CR1_UESM);
/* Process Unlocked */
__HAL_UNLOCK(huart);
return HAL_OK;
}
/**
* @brief Disable UART Stop Mode.
* @param huart UART handle.
* @retval HAL status
*/
HAL_StatusTypeDef HAL_UARTEx_DisableStopMode(UART_HandleTypeDef *huart)
{
/* Process Locked */
__HAL_LOCK(huart);
/* Clear UESM bit */
CLEAR_BIT(huart->Instance->CR1, USART_CR1_UESM);
/* Process Unlocked */
__HAL_UNLOCK(huart);
return HAL_OK;
}
/**
* @brief Receive an amount of data in blocking mode till either the expected number of data is received or an IDLE event occurs.
* @note HAL_OK is returned if reception is completed (expected number of data has been received)
* or if reception is stopped after IDLE event (less than the expected number of data has been received)
* In this case, RxLen output parameter indicates number of data available in reception buffer.
* @note When UART parity is not enabled (PCE = 0), and Word Length is configured to 9 bits (M1-M0 = 01),
* the received data is handled as a set of uint16_t. In this case, Size must indicate the number
* of uint16_t available through pData.
* @note When UART parity is not enabled (PCE = 0), and Word Length is configured to 9 bits (M1-M0 = 01),
* address of user data buffer for storing data to be received, should be aligned on a half word frontier (16 bits)
* (as received data will be handled using uint16_t pointer cast). Depending on compilation chain,
* use of specific alignment compilation directives or pragmas might be required to ensure proper alignment for pData.
* @param huart UART handle.
* @param pData Pointer to data buffer (uint8_t or uint16_t data elements).
* @param Size Amount of data elements (uint8_t or uint16_t) to be received.
* @param RxLen Number of data elements finally received (could be lower than Size, in case reception ends on IDLE event)
* @param Timeout Timeout duration expressed in ms (covers the whole reception sequence).
* @retval HAL status
*/
HAL_StatusTypeDef HAL_UARTEx_ReceiveToIdle(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size, uint16_t *RxLen, uint32_t Timeout)
{
uint8_t *pdata8bits;
uint16_t *pdata16bits;
uint16_t uhMask;
uint32_t tickstart;
/* Check that a Rx process is not already ongoing */
if (huart->RxState == HAL_UART_STATE_READY)
{
if ((pData == NULL) || (Size == 0U))
{
return HAL_ERROR;
}
/* In case of 9bits/No Parity transfer, pData buffer provided as input parameter
should be aligned on a uint16_t frontier, as data to be received from RDR will be
handled through a uint16_t cast. */
if ((huart->Init.WordLength == UART_WORDLENGTH_9B) && (huart->Init.Parity == UART_PARITY_NONE))
{
if ((((uint32_t)pData) & 1U) != 0U)
{
return HAL_ERROR;
}
}
__HAL_LOCK(huart);
huart->ErrorCode = HAL_UART_ERROR_NONE;
huart->RxState = HAL_UART_STATE_BUSY_RX;
huart->ReceptionType = HAL_UART_RECEPTION_TOIDLE;
/* Init tickstart for timeout management */
tickstart = HAL_GetTick();
huart->RxXferSize = Size;
huart->RxXferCount = Size;
/* Computation of UART mask to apply to RDR register */
UART_MASK_COMPUTATION(huart);
uhMask = huart->Mask;
/* In case of 9bits/No Parity transfer, pRxData needs to be handled as a uint16_t pointer */
if ((huart->Init.WordLength == UART_WORDLENGTH_9B) && (huart->Init.Parity == UART_PARITY_NONE))
{
pdata8bits = NULL;
pdata16bits = (uint16_t *) pData;
}
else
{
pdata8bits = pData;
pdata16bits = NULL;
}
__HAL_UNLOCK(huart);
/* Initialize output number of received elements */
*RxLen = 0U;
/* as long as data have to be received */
while (huart->RxXferCount > 0U)
{
/* Check if IDLE flag is set */
if (__HAL_UART_GET_FLAG(huart, UART_FLAG_IDLE))
{
/* Clear IDLE flag in ISR */
__HAL_UART_CLEAR_FLAG(huart, UART_CLEAR_IDLEF);
/* If Set, but no data ever received, clear flag without exiting loop */
/* If Set, and data has already been received, this means Idle Event is valid : End reception */
if (*RxLen > 0U)
{
huart->RxState = HAL_UART_STATE_READY;
return HAL_OK;
}
}
/* Check if RXNE flag is set */
if (__HAL_UART_GET_FLAG(huart, UART_FLAG_RXNE))
{
if (pdata8bits == NULL)
{
*pdata16bits = (uint16_t)(huart->Instance->RDR & uhMask);
pdata16bits++;
}
else
{
*pdata8bits = (uint8_t)(huart->Instance->RDR & (uint8_t)uhMask);
pdata8bits++;
}
/* Increment number of received elements */
*RxLen += 1U;
huart->RxXferCount--;
}
/* Check for the Timeout */
if (Timeout != HAL_MAX_DELAY)
{
if (((HAL_GetTick() - tickstart) > Timeout) || (Timeout == 0U))
{
huart->RxState = HAL_UART_STATE_READY;
return HAL_TIMEOUT;
}
}
}
/* Set number of received elements in output parameter : RxLen */
*RxLen = huart->RxXferSize - huart->RxXferCount;
/* At end of Rx process, restore huart->RxState to Ready */
huart->RxState = HAL_UART_STATE_READY;
return HAL_OK;
}
else
{
return HAL_BUSY;
}
}
/**
* @brief Receive an amount of data in interrupt mode till either the expected number of data is received or an IDLE event occurs.
* @note Reception is initiated by this function call. Further progress of reception is achieved thanks
* to UART interrupts raised by RXNE and IDLE events. Callback is called at end of reception indicating
* number of received data elements.
* @note When UART parity is not enabled (PCE = 0), and Word Length is configured to 9 bits (M1-M0 = 01),
* the received data is handled as a set of uint16_t. In this case, Size must indicate the number
* of uint16_t available through pData.
* @note When UART parity is not enabled (PCE = 0), and Word Length is configured to 9 bits (M1-M0 = 01),
* address of user data buffer for storing data to be received, should be aligned on a half word frontier (16 bits)
* (as received data will be handled using uint16_t pointer cast). Depending on compilation chain,
* use of specific alignment compilation directives or pragmas might be required to ensure proper alignment for pData.
* @param huart UART handle.
* @param pData Pointer to data buffer (uint8_t or uint16_t data elements).
* @param Size Amount of data elements (uint8_t or uint16_t) to be received.
* @retval HAL status
*/
HAL_StatusTypeDef HAL_UARTEx_ReceiveToIdle_IT(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size)
{
HAL_StatusTypeDef status;
/* Check that a Rx process is not already ongoing */
if (huart->RxState == HAL_UART_STATE_READY)
{
if ((pData == NULL) || (Size == 0U))
{
return HAL_ERROR;
}
/* In case of 9bits/No Parity transfer, pData buffer provided as input parameter
should be aligned on a uint16_t frontier, as data to be received from RDR will be
handled through a uint16_t cast. */
if ((huart->Init.WordLength == UART_WORDLENGTH_9B) && (huart->Init.Parity == UART_PARITY_NONE))
{
if ((((uint32_t)pData) & 1U) != 0U)
{
return HAL_ERROR;
}
}
__HAL_LOCK(huart);
/* Set Reception type to reception till IDLE Event*/
huart->ReceptionType = HAL_UART_RECEPTION_TOIDLE;
status = UART_Start_Receive_IT(huart, pData, Size);
/* Check Rx process has been successfully started */
if (status == HAL_OK)
{
if (huart->ReceptionType == HAL_UART_RECEPTION_TOIDLE)
{
__HAL_UART_CLEAR_FLAG(huart, UART_CLEAR_IDLEF);
SET_BIT(huart->Instance->CR1, USART_CR1_IDLEIE);
}
else
{
/* In case of errors already pending when reception is started,
Interrupts may have already been raised and lead to reception abortion.
(Overrun error for instance).
In such case Reception Type has been reset to HAL_UART_RECEPTION_STANDARD. */
status = HAL_ERROR;
}
}
return status;
}
else
{
return HAL_BUSY;
}
}
/**
* @brief Receive an amount of data in DMA mode till either the expected number of data is received or an IDLE event occurs.
* @note Reception is initiated by this function call. Further progress of reception is achieved thanks
* to DMA services, transferring automatically received data elements in user reception buffer and
* calling registered callbacks at half/end of reception. UART IDLE events are also used to consider
* reception phase as ended. In all cases, callback execution will indicate number of received data elements.
* @note When the UART parity is enabled (PCE = 1), the received data contain
* the parity bit (MSB position).
* @note When UART parity is not enabled (PCE = 0), and Word Length is configured to 9 bits (M1-M0 = 01),
* the received data is handled as a set of uint16_t. In this case, Size must indicate the number
* of uint16_t available through pData.
* @note When UART parity is not enabled (PCE = 0), and Word Length is configured to 9 bits (M1-M0 = 01),
* address of user data buffer for storing data to be received, should be aligned on a half word frontier (16 bits)
* (as received data will be handled by DMA from halfword frontier). Depending on compilation chain,
* use of specific alignment compilation directives or pragmas might be required to ensure proper alignment for pData.
* @param huart UART handle.
* @param pData Pointer to data buffer (uint8_t or uint16_t data elements).
* @param Size Amount of data elements (uint8_t or uint16_t) to be received.
* @retval HAL status
*/
HAL_StatusTypeDef HAL_UARTEx_ReceiveToIdle_DMA(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size)
{
HAL_StatusTypeDef status;
/* Check that a Rx process is not already ongoing */
if (huart->RxState == HAL_UART_STATE_READY)
{
if ((pData == NULL) || (Size == 0U))
{
return HAL_ERROR;
}
/* In case of 9bits/No Parity transfer, pData buffer provided as input parameter
should be aligned on a uint16_t frontier, as data copy from RDR will be
handled by DMA from a uint16_t frontier. */
if ((huart->Init.WordLength == UART_WORDLENGTH_9B) && (huart->Init.Parity == UART_PARITY_NONE))
{
if ((((uint32_t)pData) & 1U) != 0U)
{
return HAL_ERROR;
}
}
__HAL_LOCK(huart);
/* Set Reception type to reception till IDLE Event*/
huart->ReceptionType = HAL_UART_RECEPTION_TOIDLE;
status = UART_Start_Receive_DMA(huart, pData, Size);
/* Check Rx process has been successfully started */
if (status == HAL_OK)
{
if (huart->ReceptionType == HAL_UART_RECEPTION_TOIDLE)
{
__HAL_UART_CLEAR_FLAG(huart, UART_CLEAR_IDLEF);
SET_BIT(huart->Instance->CR1, USART_CR1_IDLEIE);
}
else
{
/* In case of errors already pending when reception is started,
Interrupts may have already been raised and lead to reception abortion.
(Overrun error for instance).
In such case Reception Type has been reset to HAL_UART_RECEPTION_STANDARD. */
status = HAL_ERROR;
}
}
return status;
}
else
{
return HAL_BUSY;
}
}
/**
* @}
*/
/**
* @}
*/
/** @addtogroup UARTEx_Private_Functions
* @{
*/
/**
* @brief Initialize the UART wake-up from stop mode parameters when triggered by address detection.
* @param huart UART handle.
* @param WakeUpSelection UART wake up from stop mode parameters.
* @retval None
*/
static void UARTEx_Wakeup_AddressConfig(UART_HandleTypeDef *huart, UART_WakeUpTypeDef WakeUpSelection)
{
assert_param(IS_UART_ADDRESSLENGTH_DETECT(WakeUpSelection.AddressLength));
/* Set the USART address length */
MODIFY_REG(huart->Instance->CR2, USART_CR2_ADDM7, WakeUpSelection.AddressLength);
/* Set the USART address node */
MODIFY_REG(huart->Instance->CR2, USART_CR2_ADD, ((uint32_t)WakeUpSelection.Address << UART_CR2_ADDRESS_LSB_POS));
}
/**
* @}
*/
#endif /* HAL_UART_MODULE_ENABLED */
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

379
fw/Drivers/STM32L0xx_HAL_Driver/Src/stm32l0xx_ll_dma.c Normal file
View File

@@ -0,0 +1,379 @@
/**
******************************************************************************
* @file stm32l0xx_ll_dma.c
* @author MCD Application Team
* @brief DMA LL module driver.
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT(c) 2016 STMicroelectronics.
* All rights reserved.</center></h2>
*
* This software component is licensed by ST under BSD 3-Clause license,
* the "License"; You may not use this file except in compliance with the
* License. You may obtain a copy of the License at:
* opensource.org/licenses/BSD-3-Clause
*
******************************************************************************
*/
#if defined(USE_FULL_LL_DRIVER)
/* Includes ------------------------------------------------------------------*/
#include "stm32l0xx_ll_dma.h"
#include "stm32l0xx_ll_bus.h"
#ifdef USE_FULL_ASSERT
#include "stm32_assert.h"
#else
#define assert_param(expr) ((void)0U)
#endif
/** @addtogroup STM32L0xx_LL_Driver
* @{
*/
#if defined (DMA1)
/** @defgroup DMA_LL DMA
* @{
*/
/* Private types -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private constants ---------------------------------------------------------*/
/* Private macros ------------------------------------------------------------*/
/** @addtogroup DMA_LL_Private_Macros
* @{
*/
#define IS_LL_DMA_DIRECTION(__VALUE__) (((__VALUE__) == LL_DMA_DIRECTION_PERIPH_TO_MEMORY) || \
((__VALUE__) == LL_DMA_DIRECTION_MEMORY_TO_PERIPH) || \
((__VALUE__) == LL_DMA_DIRECTION_MEMORY_TO_MEMORY))
#define IS_LL_DMA_MODE(__VALUE__) (((__VALUE__) == LL_DMA_MODE_NORMAL) || \
((__VALUE__) == LL_DMA_MODE_CIRCULAR))
#define IS_LL_DMA_PERIPHINCMODE(__VALUE__) (((__VALUE__) == LL_DMA_PERIPH_INCREMENT) || \
((__VALUE__) == LL_DMA_PERIPH_NOINCREMENT))
#define IS_LL_DMA_MEMORYINCMODE(__VALUE__) (((__VALUE__) == LL_DMA_MEMORY_INCREMENT) || \
((__VALUE__) == LL_DMA_MEMORY_NOINCREMENT))
#define IS_LL_DMA_PERIPHDATASIZE(__VALUE__) (((__VALUE__) == LL_DMA_PDATAALIGN_BYTE) || \
((__VALUE__) == LL_DMA_PDATAALIGN_HALFWORD) || \
((__VALUE__) == LL_DMA_PDATAALIGN_WORD))
#define IS_LL_DMA_MEMORYDATASIZE(__VALUE__) (((__VALUE__) == LL_DMA_MDATAALIGN_BYTE) || \
((__VALUE__) == LL_DMA_MDATAALIGN_HALFWORD) || \
((__VALUE__) == LL_DMA_MDATAALIGN_WORD))
#define IS_LL_DMA_NBDATA(__VALUE__) ((__VALUE__) <= 0x0000FFFFU)
#define IS_LL_DMA_PERIPHREQUEST(__VALUE__) (((__VALUE__) == LL_DMA_REQUEST_0) || \
((__VALUE__) == LL_DMA_REQUEST_1) || \
((__VALUE__) == LL_DMA_REQUEST_2) || \
((__VALUE__) == LL_DMA_REQUEST_3) || \
((__VALUE__) == LL_DMA_REQUEST_4) || \
((__VALUE__) == LL_DMA_REQUEST_5) || \
((__VALUE__) == LL_DMA_REQUEST_6) || \
((__VALUE__) == LL_DMA_REQUEST_7) || \
((__VALUE__) == LL_DMA_REQUEST_8) || \
((__VALUE__) == LL_DMA_REQUEST_9) || \
((__VALUE__) == LL_DMA_REQUEST_10) || \
((__VALUE__) == LL_DMA_REQUEST_11) || \
((__VALUE__) == LL_DMA_REQUEST_12) || \
((__VALUE__) == LL_DMA_REQUEST_13) || \
((__VALUE__) == LL_DMA_REQUEST_14) || \
((__VALUE__) == LL_DMA_REQUEST_15))
#define IS_LL_DMA_PRIORITY(__VALUE__) (((__VALUE__) == LL_DMA_PRIORITY_LOW) || \
((__VALUE__) == LL_DMA_PRIORITY_MEDIUM) || \
((__VALUE__) == LL_DMA_PRIORITY_HIGH) || \
((__VALUE__) == LL_DMA_PRIORITY_VERYHIGH))
#if defined (DMA1_Channel6) && defined (DMA1_Channel7)
#define IS_LL_DMA_ALL_CHANNEL_INSTANCE(INSTANCE, CHANNEL) ((((INSTANCE) == DMA1) && \
(((CHANNEL) == LL_DMA_CHANNEL_1)|| \
((CHANNEL) == LL_DMA_CHANNEL_2) || \
((CHANNEL) == LL_DMA_CHANNEL_3) || \
((CHANNEL) == LL_DMA_CHANNEL_4) || \
((CHANNEL) == LL_DMA_CHANNEL_5) || \
((CHANNEL) == LL_DMA_CHANNEL_6) || \
((CHANNEL) == LL_DMA_CHANNEL_7))))
#elif defined (DMA1_Channel6)
#define IS_LL_DMA_ALL_CHANNEL_INSTANCE(INSTANCE, CHANNEL) ((((INSTANCE) == DMA1) && \
(((CHANNEL) == LL_DMA_CHANNEL_1)|| \
((CHANNEL) == LL_DMA_CHANNEL_2) || \
((CHANNEL) == LL_DMA_CHANNEL_3) || \
((CHANNEL) == LL_DMA_CHANNEL_4) || \
((CHANNEL) == LL_DMA_CHANNEL_5) || \
((CHANNEL) == LL_DMA_CHANNEL_6))))
#else
#define IS_LL_DMA_ALL_CHANNEL_INSTANCE(INSTANCE, CHANNEL) ((((INSTANCE) == DMA1) && \
(((CHANNEL) == LL_DMA_CHANNEL_1)|| \
((CHANNEL) == LL_DMA_CHANNEL_2) || \
((CHANNEL) == LL_DMA_CHANNEL_3) || \
((CHANNEL) == LL_DMA_CHANNEL_4) || \
((CHANNEL) == LL_DMA_CHANNEL_5))))
#endif /* DMA1_Channel6 && DMA1_Channel7 */
/**
* @}
*/
/* Private function prototypes -----------------------------------------------*/
/* Exported functions --------------------------------------------------------*/
/** @addtogroup DMA_LL_Exported_Functions
* @{
*/
/** @addtogroup DMA_LL_EF_Init
* @{
*/
/**
* @brief De-initialize the DMA registers to their default reset values.
* @param DMAx DMAx Instance
* @param Channel This parameter can be one of the following values:
* @arg @ref LL_DMA_CHANNEL_1
* @arg @ref LL_DMA_CHANNEL_2
* @arg @ref LL_DMA_CHANNEL_3
* @arg @ref LL_DMA_CHANNEL_4
* @arg @ref LL_DMA_CHANNEL_5
* @arg @ref LL_DMA_CHANNEL_6 (*)
* @arg @ref LL_DMA_CHANNEL_7 (*)
* @arg @ref LL_DMA_CHANNEL_ALL
*
* (*) value not defined in all devices
* @retval An ErrorStatus enumeration value:
* - SUCCESS: DMA registers are de-initialized
* - ERROR: DMA registers are not de-initialized
*/
ErrorStatus LL_DMA_DeInit(DMA_TypeDef *DMAx, uint32_t Channel)
{
DMA_Channel_TypeDef *tmp = (DMA_Channel_TypeDef *)DMA1_Channel1;
ErrorStatus status = SUCCESS;
/* Check the DMA Instance DMAx and Channel parameters*/
assert_param(IS_LL_DMA_ALL_CHANNEL_INSTANCE(DMAx, Channel) || (Channel == LL_DMA_CHANNEL_ALL));
if (Channel == LL_DMA_CHANNEL_ALL)
{
if (DMAx == DMA1)
{
/* Force reset of DMA clock */
LL_AHB1_GRP1_ForceReset(LL_AHB1_GRP1_PERIPH_DMA1);
/* Release reset of DMA clock */
LL_AHB1_GRP1_ReleaseReset(LL_AHB1_GRP1_PERIPH_DMA1);
}
#if defined(DMA2)
else if (DMAx == DMA2)
{
/* Force reset of DMA clock */
LL_AHB1_GRP1_ForceReset(LL_AHB1_GRP1_PERIPH_DMA2);
/* Release reset of DMA clock */
LL_AHB1_GRP1_ReleaseReset(LL_AHB1_GRP1_PERIPH_DMA2);
}
#endif
else
{
status = ERROR;
}
}
else
{
tmp = (DMA_Channel_TypeDef *)(__LL_DMA_GET_CHANNEL_INSTANCE(DMAx, Channel));
/* Disable the selected DMAx_Channely */
CLEAR_BIT(tmp->CCR, DMA_CCR_EN);
/* Reset DMAx_Channely control register */
LL_DMA_WriteReg(tmp, CCR, 0U);
/* Reset DMAx_Channely remaining bytes register */
LL_DMA_WriteReg(tmp, CNDTR, 0U);
/* Reset DMAx_Channely peripheral address register */
LL_DMA_WriteReg(tmp, CPAR, 0U);
/* Reset DMAx_Channely memory address register */
LL_DMA_WriteReg(tmp, CMAR, 0U);
/* Reset Request register field for DMAx Channel */
LL_DMA_SetPeriphRequest(DMAx, Channel, LL_DMA_REQUEST_0);
if (Channel == LL_DMA_CHANNEL_1)
{
/* Reset interrupt pending bits for DMAx Channel1 */
LL_DMA_ClearFlag_GI1(DMAx);
}
else if (Channel == LL_DMA_CHANNEL_2)
{
/* Reset interrupt pending bits for DMAx Channel2 */
LL_DMA_ClearFlag_GI2(DMAx);
}
else if (Channel == LL_DMA_CHANNEL_3)
{
/* Reset interrupt pending bits for DMAx Channel3 */
LL_DMA_ClearFlag_GI3(DMAx);
}
else if (Channel == LL_DMA_CHANNEL_4)
{
/* Reset interrupt pending bits for DMAx Channel4 */
LL_DMA_ClearFlag_GI4(DMAx);
}
else if (Channel == LL_DMA_CHANNEL_5)
{
/* Reset interrupt pending bits for DMAx Channel5 */
LL_DMA_ClearFlag_GI5(DMAx);
}
#if defined(DMA1_Channel6)
else if (Channel == LL_DMA_CHANNEL_6)
{
/* Reset interrupt pending bits for DMAx Channel6 */
LL_DMA_ClearFlag_GI6(DMAx);
}
#endif
#if defined(DMA1_Channel7)
else if (Channel == LL_DMA_CHANNEL_7)
{
/* Reset interrupt pending bits for DMAx Channel7 */
LL_DMA_ClearFlag_GI7(DMAx);
}
#endif
else
{
status = ERROR;
}
}
return status;
}
/**
* @brief Initialize the DMA registers according to the specified parameters in DMA_InitStruct.
* @note To convert DMAx_Channely Instance to DMAx Instance and Channely, use helper macros :
* @arg @ref __LL_DMA_GET_INSTANCE
* @arg @ref __LL_DMA_GET_CHANNEL
* @param DMAx DMAx Instance
* @param Channel This parameter can be one of the following values:
* @arg @ref LL_DMA_CHANNEL_1
* @arg @ref LL_DMA_CHANNEL_2
* @arg @ref LL_DMA_CHANNEL_3
* @arg @ref LL_DMA_CHANNEL_4
* @arg @ref LL_DMA_CHANNEL_5
* @arg @ref LL_DMA_CHANNEL_6 (*)
* @arg @ref LL_DMA_CHANNEL_7 (*)
*
* (*) value not defined in all devices
* @param DMA_InitStruct pointer to a @ref LL_DMA_InitTypeDef structure.
* @retval An ErrorStatus enumeration value:
* - SUCCESS: DMA registers are initialized
* - ERROR: Not applicable
*/
ErrorStatus LL_DMA_Init(DMA_TypeDef *DMAx, uint32_t Channel, LL_DMA_InitTypeDef *DMA_InitStruct)
{
/* Check the DMA Instance DMAx and Channel parameters*/
assert_param(IS_LL_DMA_ALL_CHANNEL_INSTANCE(DMAx, Channel));
/* Check the DMA parameters from DMA_InitStruct */
assert_param(IS_LL_DMA_DIRECTION(DMA_InitStruct->Direction));
assert_param(IS_LL_DMA_MODE(DMA_InitStruct->Mode));
assert_param(IS_LL_DMA_PERIPHINCMODE(DMA_InitStruct->PeriphOrM2MSrcIncMode));
assert_param(IS_LL_DMA_MEMORYINCMODE(DMA_InitStruct->MemoryOrM2MDstIncMode));
assert_param(IS_LL_DMA_PERIPHDATASIZE(DMA_InitStruct->PeriphOrM2MSrcDataSize));
assert_param(IS_LL_DMA_MEMORYDATASIZE(DMA_InitStruct->MemoryOrM2MDstDataSize));
assert_param(IS_LL_DMA_NBDATA(DMA_InitStruct->NbData));
assert_param(IS_LL_DMA_PERIPHREQUEST(DMA_InitStruct->PeriphRequest));
assert_param(IS_LL_DMA_PRIORITY(DMA_InitStruct->Priority));
/*---------------------------- DMAx CCR Configuration ------------------------
* Configure DMAx_Channely: data transfer direction, data transfer mode,
* peripheral and memory increment mode,
* data size alignment and priority level with parameters :
* - Direction: DMA_CCR_DIR and DMA_CCR_MEM2MEM bits
* - Mode: DMA_CCR_CIRC bit
* - PeriphOrM2MSrcIncMode: DMA_CCR_PINC bit
* - MemoryOrM2MDstIncMode: DMA_CCR_MINC bit
* - PeriphOrM2MSrcDataSize: DMA_CCR_PSIZE[1:0] bits
* - MemoryOrM2MDstDataSize: DMA_CCR_MSIZE[1:0] bits
* - Priority: DMA_CCR_PL[1:0] bits
*/
LL_DMA_ConfigTransfer(DMAx, Channel, DMA_InitStruct->Direction | \
DMA_InitStruct->Mode | \
DMA_InitStruct->PeriphOrM2MSrcIncMode | \
DMA_InitStruct->MemoryOrM2MDstIncMode | \
DMA_InitStruct->PeriphOrM2MSrcDataSize | \
DMA_InitStruct->MemoryOrM2MDstDataSize | \
DMA_InitStruct->Priority);
/*-------------------------- DMAx CMAR Configuration -------------------------
* Configure the memory or destination base address with parameter :
* - MemoryOrM2MDstAddress: DMA_CMAR_MA[31:0] bits
*/
LL_DMA_SetMemoryAddress(DMAx, Channel, DMA_InitStruct->MemoryOrM2MDstAddress);
/*-------------------------- DMAx CPAR Configuration -------------------------
* Configure the peripheral or source base address with parameter :
* - PeriphOrM2MSrcAddress: DMA_CPAR_PA[31:0] bits
*/
LL_DMA_SetPeriphAddress(DMAx, Channel, DMA_InitStruct->PeriphOrM2MSrcAddress);
/*--------------------------- DMAx CNDTR Configuration -----------------------
* Configure the peripheral base address with parameter :
* - NbData: DMA_CNDTR_NDT[15:0] bits
*/
LL_DMA_SetDataLength(DMAx, Channel, DMA_InitStruct->NbData);
/*--------------------------- DMAx CSELR Configuration -----------------------
* Configure the DMA request for DMA instance on Channel x with parameter :
* - PeriphRequest: DMA_CSELR[31:0] bits
*/
LL_DMA_SetPeriphRequest(DMAx, Channel, DMA_InitStruct->PeriphRequest);
return SUCCESS;
}
/**
* @brief Set each @ref LL_DMA_InitTypeDef field to default value.
* @param DMA_InitStruct Pointer to a @ref LL_DMA_InitTypeDef structure.
* @retval None
*/
void LL_DMA_StructInit(LL_DMA_InitTypeDef *DMA_InitStruct)
{
/* Set DMA_InitStruct fields to default values */
DMA_InitStruct->PeriphOrM2MSrcAddress = 0x00000000U;
DMA_InitStruct->MemoryOrM2MDstAddress = 0x00000000U;
DMA_InitStruct->Direction = LL_DMA_DIRECTION_PERIPH_TO_MEMORY;
DMA_InitStruct->Mode = LL_DMA_MODE_NORMAL;
DMA_InitStruct->PeriphOrM2MSrcIncMode = LL_DMA_PERIPH_NOINCREMENT;
DMA_InitStruct->MemoryOrM2MDstIncMode = LL_DMA_MEMORY_NOINCREMENT;
DMA_InitStruct->PeriphOrM2MSrcDataSize = LL_DMA_PDATAALIGN_BYTE;
DMA_InitStruct->MemoryOrM2MDstDataSize = LL_DMA_MDATAALIGN_BYTE;
DMA_InitStruct->NbData = 0x00000000U;
DMA_InitStruct->PeriphRequest = LL_DMA_REQUEST_0;
DMA_InitStruct->Priority = LL_DMA_PRIORITY_LOW;
}
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
#endif /* DMA1 */
/**
* @}
*/
#endif /* USE_FULL_LL_DRIVER */
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

214
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/**
******************************************************************************
* @file stm32l0xx_ll_exti.c
* @author MCD Application Team
* @brief EXTI LL module driver.
******************************************************************************
* @attention
*
* <h2><center>&copy; Copyright(c) 2016 STMicroelectronics.
* All rights reserved.</center></h2>
*
* This software component is licensed by ST under BSD 3-Clause license,
* the "License"; You may not use this file except in compliance with the
* License. You may obtain a copy of the License at:
* opensource.org/licenses/BSD-3-Clause
*
******************************************************************************
*/
#if defined(USE_FULL_LL_DRIVER)
/* Includes ------------------------------------------------------------------*/
#include "stm32l0xx_ll_exti.h"
#ifdef USE_FULL_ASSERT
#include "stm32_assert.h"
#else
#define assert_param(expr) ((void)0U)
#endif
/** @addtogroup STM32L0xx_LL_Driver
* @{
*/
#if defined (EXTI)
/** @defgroup EXTI_LL EXTI
* @{
*/
/* Private types -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private constants ---------------------------------------------------------*/
/* Private macros ------------------------------------------------------------*/
/** @addtogroup EXTI_LL_Private_Macros
* @{
*/
#define IS_LL_EXTI_LINE_0_31(__VALUE__) (((__VALUE__) & ~LL_EXTI_LINE_ALL_0_31) == 0x00000000U)
#define IS_LL_EXTI_MODE(__VALUE__) (((__VALUE__) == LL_EXTI_MODE_IT) \
|| ((__VALUE__) == LL_EXTI_MODE_EVENT) \
|| ((__VALUE__) == LL_EXTI_MODE_IT_EVENT))
#define IS_LL_EXTI_TRIGGER(__VALUE__) (((__VALUE__) == LL_EXTI_TRIGGER_NONE) \
|| ((__VALUE__) == LL_EXTI_TRIGGER_RISING) \
|| ((__VALUE__) == LL_EXTI_TRIGGER_FALLING) \
|| ((__VALUE__) == LL_EXTI_TRIGGER_RISING_FALLING))
/**
* @}
*/
/* Private function prototypes -----------------------------------------------*/
/* Exported functions --------------------------------------------------------*/
/** @addtogroup EXTI_LL_Exported_Functions
* @{
*/
/** @addtogroup EXTI_LL_EF_Init
* @{
*/
/**
* @brief De-initialize the EXTI registers to their default reset values.
* @retval An ErrorStatus enumeration value:
* - SUCCESS: EXTI registers are de-initialized
* - ERROR: not applicable
*/
uint32_t LL_EXTI_DeInit(void)
{
/* Interrupt mask register set to default reset values */
LL_EXTI_WriteReg(IMR, 0x3F840000U);
/* Event mask register set to default reset values */
LL_EXTI_WriteReg(EMR, 0x00000000U);
/* Rising Trigger selection register set to default reset values */
LL_EXTI_WriteReg(RTSR, 0x00000000U);
/* Falling Trigger selection register set to default reset values */
LL_EXTI_WriteReg(FTSR, 0x00000000U);
/* Software interrupt event register set to default reset values */
LL_EXTI_WriteReg(SWIER, 0x00000000U);
/* Pending register set to default reset values */
LL_EXTI_WriteReg(PR, 0x007BFFFFU);
return SUCCESS;
}
/**
* @brief Initialize the EXTI registers according to the specified parameters in EXTI_InitStruct.
* @param EXTI_InitStruct pointer to a @ref LL_EXTI_InitTypeDef structure.
* @retval An ErrorStatus enumeration value:
* - SUCCESS: EXTI registers are initialized
* - ERROR: not applicable
*/
uint32_t LL_EXTI_Init(LL_EXTI_InitTypeDef *EXTI_InitStruct)
{
ErrorStatus status = SUCCESS;
/* Check the parameters */
assert_param(IS_LL_EXTI_LINE_0_31(EXTI_InitStruct->Line_0_31));
assert_param(IS_FUNCTIONAL_STATE(EXTI_InitStruct->LineCommand));
assert_param(IS_LL_EXTI_MODE(EXTI_InitStruct->Mode));
/* ENABLE LineCommand */
if (EXTI_InitStruct->LineCommand != DISABLE)
{
assert_param(IS_LL_EXTI_TRIGGER(EXTI_InitStruct->Trigger));
/* Configure EXTI Lines in range from 0 to 31 */
if (EXTI_InitStruct->Line_0_31 != LL_EXTI_LINE_NONE)
{
switch (EXTI_InitStruct->Mode)
{
case LL_EXTI_MODE_IT:
/* First Disable Event on provided Lines */
LL_EXTI_DisableEvent_0_31(EXTI_InitStruct->Line_0_31);
/* Then Enable IT on provided Lines */
LL_EXTI_EnableIT_0_31(EXTI_InitStruct->Line_0_31);
break;
case LL_EXTI_MODE_EVENT:
/* First Disable IT on provided Lines */
LL_EXTI_DisableIT_0_31(EXTI_InitStruct->Line_0_31);
/* Then Enable Event on provided Lines */
LL_EXTI_EnableEvent_0_31(EXTI_InitStruct->Line_0_31);
break;
case LL_EXTI_MODE_IT_EVENT:
/* Directly Enable IT & Event on provided Lines */
LL_EXTI_EnableIT_0_31(EXTI_InitStruct->Line_0_31);
LL_EXTI_EnableEvent_0_31(EXTI_InitStruct->Line_0_31);
break;
default:
status = ERROR;
break;
}
if (EXTI_InitStruct->Trigger != LL_EXTI_TRIGGER_NONE)
{
switch (EXTI_InitStruct->Trigger)
{
case LL_EXTI_TRIGGER_RISING:
/* First Disable Falling Trigger on provided Lines */
LL_EXTI_DisableFallingTrig_0_31(EXTI_InitStruct->Line_0_31);
/* Then Enable Rising Trigger on provided Lines */
LL_EXTI_EnableRisingTrig_0_31(EXTI_InitStruct->Line_0_31);
break;
case LL_EXTI_TRIGGER_FALLING:
/* First Disable Rising Trigger on provided Lines */
LL_EXTI_DisableRisingTrig_0_31(EXTI_InitStruct->Line_0_31);
/* Then Enable Falling Trigger on provided Lines */
LL_EXTI_EnableFallingTrig_0_31(EXTI_InitStruct->Line_0_31);
break;
case LL_EXTI_TRIGGER_RISING_FALLING:
LL_EXTI_EnableRisingTrig_0_31(EXTI_InitStruct->Line_0_31);
LL_EXTI_EnableFallingTrig_0_31(EXTI_InitStruct->Line_0_31);
break;
default:
status = ERROR;
break;
}
}
}
}
/* DISABLE LineCommand */
else
{
/* De-configure EXTI Lines in range from 0 to 31 */
LL_EXTI_DisableIT_0_31(EXTI_InitStruct->Line_0_31);
LL_EXTI_DisableEvent_0_31(EXTI_InitStruct->Line_0_31);
}
return status;
}
/**
* @brief Set each @ref LL_EXTI_InitTypeDef field to default value.
* @param EXTI_InitStruct Pointer to a @ref LL_EXTI_InitTypeDef structure.
* @retval None
*/
void LL_EXTI_StructInit(LL_EXTI_InitTypeDef *EXTI_InitStruct)
{
EXTI_InitStruct->Line_0_31 = LL_EXTI_LINE_NONE;
EXTI_InitStruct->LineCommand = DISABLE;
EXTI_InitStruct->Mode = LL_EXTI_MODE_IT;
EXTI_InitStruct->Trigger = LL_EXTI_TRIGGER_FALLING;
}
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
#endif /* defined (EXTI) */
/**
* @}
*/
#endif /* USE_FULL_LL_DRIVER */
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

263
fw/Drivers/STM32L0xx_HAL_Driver/Src/stm32l0xx_ll_gpio.c Normal file
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/**
******************************************************************************
* @file stm32l0xx_ll_gpio.c
* @author MCD Application Team
* @brief GPIO LL module driver.
******************************************************************************
* @attention
*
* <h2><center>&copy; Copyright(c) 2016 STMicroelectronics.
* All rights reserved.</center></h2>
*
* This software component is licensed by ST under BSD 3-Clause license,
* the "License"; You may not use this file except in compliance with the
* License. You may obtain a copy of the License at:
* opensource.org/licenses/BSD-3-Clause
*
******************************************************************************
*/
#if defined(USE_FULL_LL_DRIVER)
/* Includes ------------------------------------------------------------------*/
#include "stm32l0xx_ll_gpio.h"
#include "stm32l0xx_ll_bus.h"
#ifdef USE_FULL_ASSERT
#include "stm32_assert.h"
#else
#define assert_param(expr) ((void)0U)
#endif
/** @addtogroup STM32L0xx_LL_Driver
* @{
*/
#if defined (GPIOA) || defined (GPIOB) || defined (GPIOC) || defined (GPIOD) || defined (GPIOE) || defined (GPIOH)
/** @addtogroup GPIO_LL
* @{
*/
/* Private types -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private constants ---------------------------------------------------------*/
/* Private macros ------------------------------------------------------------*/
/** @addtogroup GPIO_LL_Private_Macros
* @{
*/
#define IS_LL_GPIO_PIN(__VALUE__) (((0x00000000UL) < (__VALUE__)) && ((__VALUE__) <= (LL_GPIO_PIN_ALL)))
#define IS_LL_GPIO_MODE(__VALUE__) (((__VALUE__) == LL_GPIO_MODE_INPUT) ||\
((__VALUE__) == LL_GPIO_MODE_OUTPUT) ||\
((__VALUE__) == LL_GPIO_MODE_ALTERNATE) ||\
((__VALUE__) == LL_GPIO_MODE_ANALOG))
#define IS_LL_GPIO_OUTPUT_TYPE(__VALUE__) (((__VALUE__) == LL_GPIO_OUTPUT_PUSHPULL) ||\
((__VALUE__) == LL_GPIO_OUTPUT_OPENDRAIN))
#define IS_LL_GPIO_SPEED(__VALUE__) (((__VALUE__) == LL_GPIO_SPEED_FREQ_LOW) ||\
((__VALUE__) == LL_GPIO_SPEED_FREQ_MEDIUM) ||\
((__VALUE__) == LL_GPIO_SPEED_FREQ_HIGH) ||\
((__VALUE__) == LL_GPIO_SPEED_FREQ_VERY_HIGH))
#define IS_LL_GPIO_PULL(__VALUE__) (((__VALUE__) == LL_GPIO_PULL_NO) ||\
((__VALUE__) == LL_GPIO_PULL_UP) ||\
((__VALUE__) == LL_GPIO_PULL_DOWN))
#define IS_LL_GPIO_ALTERNATE(__VALUE__) (((__VALUE__) == LL_GPIO_AF_0 ) ||\
((__VALUE__) == LL_GPIO_AF_1 ) ||\
((__VALUE__) == LL_GPIO_AF_2 ) ||\
((__VALUE__) == LL_GPIO_AF_3 ) ||\
((__VALUE__) == LL_GPIO_AF_4 ) ||\
((__VALUE__) == LL_GPIO_AF_5 ) ||\
((__VALUE__) == LL_GPIO_AF_6 ) ||\
((__VALUE__) == LL_GPIO_AF_7 ))
/**
* @}
*/
/* Private function prototypes -----------------------------------------------*/
/* Exported functions --------------------------------------------------------*/
/** @addtogroup GPIO_LL_Exported_Functions
* @{
*/
/** @addtogroup GPIO_LL_EF_Init
* @{
*/
/**
* @brief De-initialize GPIO registers (Registers restored to their default values).
* @param GPIOx GPIO Port
* @retval An ErrorStatus enumeration value:
* - SUCCESS: GPIO registers are de-initialized
* - ERROR: Wrong GPIO Port
*/
ErrorStatus LL_GPIO_DeInit(GPIO_TypeDef *GPIOx)
{
ErrorStatus status = SUCCESS;
/* Check the parameters */
assert_param(IS_GPIO_ALL_INSTANCE(GPIOx));
/* Force and Release reset on clock of GPIOx Port */
if (GPIOx == GPIOA)
{
LL_IOP_GRP1_ForceReset(LL_IOP_GRP1_PERIPH_GPIOA);
LL_IOP_GRP1_ReleaseReset(LL_IOP_GRP1_PERIPH_GPIOA);
}
else if (GPIOx == GPIOB)
{
LL_IOP_GRP1_ForceReset(LL_IOP_GRP1_PERIPH_GPIOB);
LL_IOP_GRP1_ReleaseReset(LL_IOP_GRP1_PERIPH_GPIOB);
}
else if (GPIOx == GPIOC)
{
LL_IOP_GRP1_ForceReset(LL_IOP_GRP1_PERIPH_GPIOC);
LL_IOP_GRP1_ReleaseReset(LL_IOP_GRP1_PERIPH_GPIOC);
}
#if defined(GPIOD)
else if (GPIOx == GPIOD)
{
LL_IOP_GRP1_ForceReset(LL_IOP_GRP1_PERIPH_GPIOD);
LL_IOP_GRP1_ReleaseReset(LL_IOP_GRP1_PERIPH_GPIOD);
}
#endif /* GPIOD */
#if defined(GPIOE)
else if (GPIOx == GPIOE)
{
LL_IOP_GRP1_ForceReset(LL_IOP_GRP1_PERIPH_GPIOE);
LL_IOP_GRP1_ReleaseReset(LL_IOP_GRP1_PERIPH_GPIOE);
}
#endif /* GPIOE */
#if defined(GPIOH)
else if (GPIOx == GPIOH)
{
LL_IOP_GRP1_ForceReset(LL_IOP_GRP1_PERIPH_GPIOH);
LL_IOP_GRP1_ReleaseReset(LL_IOP_GRP1_PERIPH_GPIOH);
}
#endif /* GPIOH */
else
{
status = ERROR;
}
return (status);
}
/**
* @brief Initialize GPIO registers according to the specified parameters in GPIO_InitStruct.
* @param GPIOx GPIO Port
* @param GPIO_InitStruct pointer to a @ref LL_GPIO_InitTypeDef structure
* that contains the configuration information for the specified GPIO peripheral.
* @retval An ErrorStatus enumeration value:
* - SUCCESS: GPIO registers are initialized according to GPIO_InitStruct content
* - ERROR: Not applicable
*/
ErrorStatus LL_GPIO_Init(GPIO_TypeDef *GPIOx, LL_GPIO_InitTypeDef *GPIO_InitStruct)
{
uint32_t pinpos = 0x00000000U;
uint32_t currentpin = 0x00000000U;
/* Check the parameters */
assert_param(IS_GPIO_ALL_INSTANCE(GPIOx));
assert_param(IS_LL_GPIO_PIN(GPIO_InitStruct->Pin));
assert_param(IS_LL_GPIO_MODE(GPIO_InitStruct->Mode));
assert_param(IS_LL_GPIO_PULL(GPIO_InitStruct->Pull));
/* ------------------------- Configure the port pins ---------------- */
/* Initialize pinpos on first pin set */
/* pinpos = 0; useless as already done in default initialization */
/* Configure the port pins */
while (((GPIO_InitStruct->Pin) >> pinpos) != 0x00000000U)
{
/* Get current io position */
currentpin = (GPIO_InitStruct->Pin) & (0x00000001U << pinpos);
if (currentpin)
{
if ((GPIO_InitStruct->Mode == LL_GPIO_MODE_OUTPUT) || (GPIO_InitStruct->Mode == LL_GPIO_MODE_ALTERNATE))
{
/* Check Speed mode parameters */
assert_param(IS_LL_GPIO_SPEED(GPIO_InitStruct->Speed));
/* Speed mode configuration */
LL_GPIO_SetPinSpeed(GPIOx, currentpin, GPIO_InitStruct->Speed);
/* Check Output mode parameters */
assert_param(IS_LL_GPIO_OUTPUT_TYPE(GPIO_InitStruct->OutputType));
/* Output mode configuration*/
LL_GPIO_SetPinOutputType(GPIOx, GPIO_InitStruct->Pin, GPIO_InitStruct->OutputType);
}
/* Pull-up Pull down resistor configuration*/
LL_GPIO_SetPinPull(GPIOx, currentpin, GPIO_InitStruct->Pull);
if (GPIO_InitStruct->Mode == LL_GPIO_MODE_ALTERNATE)
{
/* Check Alternate parameter */
assert_param(IS_LL_GPIO_ALTERNATE(GPIO_InitStruct->Alternate));
/* Speed mode configuration */
if (currentpin < LL_GPIO_PIN_8)
{
LL_GPIO_SetAFPin_0_7(GPIOx, currentpin, GPIO_InitStruct->Alternate);
}
else
{
LL_GPIO_SetAFPin_8_15(GPIOx, currentpin, GPIO_InitStruct->Alternate);
}
}
/* Pin Mode configuration */
LL_GPIO_SetPinMode(GPIOx, currentpin, GPIO_InitStruct->Mode);
}
pinpos++;
}
return (SUCCESS);
}
/**
* @brief Set each @ref LL_GPIO_InitTypeDef field to default value.
* @param GPIO_InitStruct: pointer to a @ref LL_GPIO_InitTypeDef structure
* whose fields will be set to default values.
* @retval None
*/
void LL_GPIO_StructInit(LL_GPIO_InitTypeDef *GPIO_InitStruct)
{
/* Reset GPIO init structure parameters values */
GPIO_InitStruct->Pin = LL_GPIO_PIN_ALL;
GPIO_InitStruct->Mode = LL_GPIO_MODE_ANALOG;
GPIO_InitStruct->Speed = LL_GPIO_SPEED_FREQ_LOW;
GPIO_InitStruct->OutputType = LL_GPIO_OUTPUT_PUSHPULL;
GPIO_InitStruct->Pull = LL_GPIO_PULL_NO;
GPIO_InitStruct->Alternate = LL_GPIO_AF_0;
}
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
#endif /* defined (GPIOA) || defined (GPIOB) || defined (GPIOC) || defined (GPIOD) || defined (GPIOE) || defined (GPIOH) */
/**
* @}
*/
#endif /* USE_FULL_LL_DRIVER */
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

239
fw/Drivers/STM32L0xx_HAL_Driver/Src/stm32l0xx_ll_i2c.c Normal file
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/**
******************************************************************************
* @file stm32l0xx_ll_i2c.c
* @author MCD Application Team
* @brief I2C LL module driver.
******************************************************************************
* @attention
*
* <h2><center>&copy; Copyright (c) 2016 STMicroelectronics.
* All rights reserved.</center></h2>
*
* This software component is licensed by ST under BSD 3-Clause license,
* the "License"; You may not use this file except in compliance with the
* License. You may obtain a copy of the License at:
* opensource.org/licenses/BSD-3-Clause
*
******************************************************************************
*/
#if defined(USE_FULL_LL_DRIVER)
/* Includes ------------------------------------------------------------------*/
#include "stm32l0xx_ll_i2c.h"
#include "stm32l0xx_ll_bus.h"
#ifdef USE_FULL_ASSERT
#include "stm32_assert.h"
#else
#define assert_param(expr) ((void)0U)
#endif
/** @addtogroup STM32L0xx_LL_Driver
* @{
*/
#if defined (I2C1) || defined (I2C2) || defined (I2C3)
/** @defgroup I2C_LL I2C
* @{
*/
/* Private types -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private constants ---------------------------------------------------------*/
/* Private macros ------------------------------------------------------------*/
/** @addtogroup I2C_LL_Private_Macros
* @{
*/
#define IS_LL_I2C_PERIPHERAL_MODE(__VALUE__) (((__VALUE__) == LL_I2C_MODE_I2C) || \
((__VALUE__) == LL_I2C_MODE_SMBUS_HOST) || \
((__VALUE__) == LL_I2C_MODE_SMBUS_DEVICE) || \
((__VALUE__) == LL_I2C_MODE_SMBUS_DEVICE_ARP))
#define IS_LL_I2C_ANALOG_FILTER(__VALUE__) (((__VALUE__) == LL_I2C_ANALOGFILTER_ENABLE) || \
((__VALUE__) == LL_I2C_ANALOGFILTER_DISABLE))
#define IS_LL_I2C_DIGITAL_FILTER(__VALUE__) ((__VALUE__) <= 0x0000000FU)
#define IS_LL_I2C_OWN_ADDRESS1(__VALUE__) ((__VALUE__) <= 0x000003FFU)
#define IS_LL_I2C_TYPE_ACKNOWLEDGE(__VALUE__) (((__VALUE__) == LL_I2C_ACK) || \
((__VALUE__) == LL_I2C_NACK))
#define IS_LL_I2C_OWN_ADDRSIZE(__VALUE__) (((__VALUE__) == LL_I2C_OWNADDRESS1_7BIT) || \
((__VALUE__) == LL_I2C_OWNADDRESS1_10BIT))
/**
* @}
*/
/* Private function prototypes -----------------------------------------------*/
/* Exported functions --------------------------------------------------------*/
/** @addtogroup I2C_LL_Exported_Functions
* @{
*/
/** @addtogroup I2C_LL_EF_Init
* @{
*/
/**
* @brief De-initialize the I2C registers to their default reset values.
* @param I2Cx I2C Instance.
* @retval An ErrorStatus enumeration value:
* - SUCCESS: I2C registers are de-initialized
* - ERROR: I2C registers are not de-initialized
*/
ErrorStatus LL_I2C_DeInit(I2C_TypeDef *I2Cx)
{
ErrorStatus status = SUCCESS;
/* Check the I2C Instance I2Cx */
assert_param(IS_I2C_ALL_INSTANCE(I2Cx));
if (I2Cx == I2C1)
{
/* Force reset of I2C clock */
LL_APB1_GRP1_ForceReset(LL_APB1_GRP1_PERIPH_I2C1);
/* Release reset of I2C clock */
LL_APB1_GRP1_ReleaseReset(LL_APB1_GRP1_PERIPH_I2C1);
}
#if defined(I2C2)
else if (I2Cx == I2C2)
{
/* Force reset of I2C clock */
LL_APB1_GRP1_ForceReset(LL_APB1_GRP1_PERIPH_I2C2);
/* Release reset of I2C clock */
LL_APB1_GRP1_ReleaseReset(LL_APB1_GRP1_PERIPH_I2C2);
}
#endif
#if defined(I2C3)
else if (I2Cx == I2C3)
{
/* Force reset of I2C clock */
LL_APB1_GRP1_ForceReset(LL_APB1_GRP1_PERIPH_I2C3);
/* Release reset of I2C clock */
LL_APB1_GRP1_ReleaseReset(LL_APB1_GRP1_PERIPH_I2C3);
}
#endif
else
{
status = ERROR;
}
return status;
}
/**
* @brief Initialize the I2C registers according to the specified parameters in I2C_InitStruct.
* @param I2Cx I2C Instance.
* @param I2C_InitStruct pointer to a @ref LL_I2C_InitTypeDef structure.
* @retval An ErrorStatus enumeration value:
* - SUCCESS: I2C registers are initialized
* - ERROR: Not applicable
*/
ErrorStatus LL_I2C_Init(I2C_TypeDef *I2Cx, LL_I2C_InitTypeDef *I2C_InitStruct)
{
/* Check the I2C Instance I2Cx */
assert_param(IS_I2C_ALL_INSTANCE(I2Cx));
/* Check the I2C parameters from I2C_InitStruct */
assert_param(IS_LL_I2C_PERIPHERAL_MODE(I2C_InitStruct->PeripheralMode));
assert_param(IS_LL_I2C_ANALOG_FILTER(I2C_InitStruct->AnalogFilter));
assert_param(IS_LL_I2C_DIGITAL_FILTER(I2C_InitStruct->DigitalFilter));
assert_param(IS_LL_I2C_OWN_ADDRESS1(I2C_InitStruct->OwnAddress1));
assert_param(IS_LL_I2C_TYPE_ACKNOWLEDGE(I2C_InitStruct->TypeAcknowledge));
assert_param(IS_LL_I2C_OWN_ADDRSIZE(I2C_InitStruct->OwnAddrSize));
/* Disable the selected I2Cx Peripheral */
LL_I2C_Disable(I2Cx);
/*---------------------------- I2Cx CR1 Configuration ------------------------
* Configure the analog and digital noise filters with parameters :
* - AnalogFilter: I2C_CR1_ANFOFF bit
* - DigitalFilter: I2C_CR1_DNF[3:0] bits
*/
LL_I2C_ConfigFilters(I2Cx, I2C_InitStruct->AnalogFilter, I2C_InitStruct->DigitalFilter);
/*---------------------------- I2Cx TIMINGR Configuration --------------------
* Configure the SDA setup, hold time and the SCL high, low period with parameter :
* - Timing: I2C_TIMINGR_PRESC[3:0], I2C_TIMINGR_SCLDEL[3:0], I2C_TIMINGR_SDADEL[3:0],
* I2C_TIMINGR_SCLH[7:0] and I2C_TIMINGR_SCLL[7:0] bits
*/
LL_I2C_SetTiming(I2Cx, I2C_InitStruct->Timing);
/* Enable the selected I2Cx Peripheral */
LL_I2C_Enable(I2Cx);
/*---------------------------- I2Cx OAR1 Configuration -----------------------
* Disable, Configure and Enable I2Cx device own address 1 with parameters :
* - OwnAddress1: I2C_OAR1_OA1[9:0] bits
* - OwnAddrSize: I2C_OAR1_OA1MODE bit
*/
LL_I2C_DisableOwnAddress1(I2Cx);
LL_I2C_SetOwnAddress1(I2Cx, I2C_InitStruct->OwnAddress1, I2C_InitStruct->OwnAddrSize);
/* OwnAdress1 == 0 is reserved for General Call address */
if (I2C_InitStruct->OwnAddress1 != 0U)
{
LL_I2C_EnableOwnAddress1(I2Cx);
}
/*---------------------------- I2Cx MODE Configuration -----------------------
* Configure I2Cx peripheral mode with parameter :
* - PeripheralMode: I2C_CR1_SMBDEN and I2C_CR1_SMBHEN bits
*/
LL_I2C_SetMode(I2Cx, I2C_InitStruct->PeripheralMode);
/*---------------------------- I2Cx CR2 Configuration ------------------------
* Configure the ACKnowledge or Non ACKnowledge condition
* after the address receive match code or next received byte with parameter :
* - TypeAcknowledge: I2C_CR2_NACK bit
*/
LL_I2C_AcknowledgeNextData(I2Cx, I2C_InitStruct->TypeAcknowledge);
return SUCCESS;
}
/**
* @brief Set each @ref LL_I2C_InitTypeDef field to default value.
* @param I2C_InitStruct Pointer to a @ref LL_I2C_InitTypeDef structure.
* @retval None
*/
void LL_I2C_StructInit(LL_I2C_InitTypeDef *I2C_InitStruct)
{
/* Set I2C_InitStruct fields to default values */
I2C_InitStruct->PeripheralMode = LL_I2C_MODE_I2C;
I2C_InitStruct->Timing = 0U;
I2C_InitStruct->AnalogFilter = LL_I2C_ANALOGFILTER_ENABLE;
I2C_InitStruct->DigitalFilter = 0U;
I2C_InitStruct->OwnAddress1 = 0U;
I2C_InitStruct->TypeAcknowledge = LL_I2C_NACK;
I2C_InitStruct->OwnAddrSize = LL_I2C_OWNADDRESS1_7BIT;
}
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
#endif /* I2C1 || I2C2 || I2C3 */
/**
* @}
*/
#endif /* USE_FULL_LL_DRIVER */
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

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/**
******************************************************************************
* @file stm32l0xx_ll_lpuart.c
* @author MCD Application Team
* @brief LPUART LL module driver.
******************************************************************************
* @attention
*
* <h2><center>&copy; Copyright (c) 2016 STMicroelectronics.
* All rights reserved.</center></h2>
*
* This software component is licensed by ST under BSD 3-Clause license,
* the "License"; You may not use this file except in compliance with the
* License. You may obtain a copy of the License at:
* opensource.org/licenses/BSD-3-Clause
*
******************************************************************************
*/
#if defined(USE_FULL_LL_DRIVER)
/* Includes ------------------------------------------------------------------*/
#include "stm32l0xx_ll_lpuart.h"
#include "stm32l0xx_ll_rcc.h"
#include "stm32l0xx_ll_bus.h"
#ifdef USE_FULL_ASSERT
#include "stm32_assert.h"
#else
#define assert_param(expr) ((void)0U)
#endif /* USE_FULL_ASSERT */
/** @addtogroup STM32L0xx_LL_Driver
* @{
*/
#if defined (LPUART1)
/** @addtogroup LPUART_LL
* @{
*/
/* Private types -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private constants ---------------------------------------------------------*/
/** @addtogroup LPUART_LL_Private_Constants
* @{
*/
/**
* @}
*/
/* Private macros ------------------------------------------------------------*/
/** @addtogroup LPUART_LL_Private_Macros
* @{
*/
/* Check of parameters for configuration of LPUART registers */
/* __BAUDRATE__ Depending on constraints applicable for LPUART BRR register */
/* value : */
/* - fck must be in the range [3 x baudrate, 4096 x baudrate] */
/* - LPUART_BRR register value should be >= 0x300 */
/* - LPUART_BRR register value should be <= 0xFFFFF (20 bits) */
/* Baudrate specified by the user should belong to [8, 10600000].*/
#define IS_LL_LPUART_BAUDRATE(__BAUDRATE__) (((__BAUDRATE__) <= 10600000U) && ((__BAUDRATE__) >= 8U))
/* __VALUE__ BRR content must be greater than or equal to 0x300. */
#define IS_LL_LPUART_BRR_MIN(__VALUE__) ((__VALUE__) >= 0x300U)
/* __VALUE__ BRR content must be lower than or equal to 0xFFFFF. */
#define IS_LL_LPUART_BRR_MAX(__VALUE__) ((__VALUE__) <= 0x000FFFFFU)
#define IS_LL_LPUART_DIRECTION(__VALUE__) (((__VALUE__) == LL_LPUART_DIRECTION_NONE) \
|| ((__VALUE__) == LL_LPUART_DIRECTION_RX) \
|| ((__VALUE__) == LL_LPUART_DIRECTION_TX) \
|| ((__VALUE__) == LL_LPUART_DIRECTION_TX_RX))
#define IS_LL_LPUART_PARITY(__VALUE__) (((__VALUE__) == LL_LPUART_PARITY_NONE) \
|| ((__VALUE__) == LL_LPUART_PARITY_EVEN) \
|| ((__VALUE__) == LL_LPUART_PARITY_ODD))
#define IS_LL_LPUART_DATAWIDTH(__VALUE__) (((__VALUE__) == LL_LPUART_DATAWIDTH_7B) \
|| ((__VALUE__) == LL_LPUART_DATAWIDTH_8B) \
|| ((__VALUE__) == LL_LPUART_DATAWIDTH_9B))
#define IS_LL_LPUART_STOPBITS(__VALUE__) (((__VALUE__) == LL_LPUART_STOPBITS_1) \
|| ((__VALUE__) == LL_LPUART_STOPBITS_2))
#define IS_LL_LPUART_HWCONTROL(__VALUE__) (((__VALUE__) == LL_LPUART_HWCONTROL_NONE) \
|| ((__VALUE__) == LL_LPUART_HWCONTROL_RTS) \
|| ((__VALUE__) == LL_LPUART_HWCONTROL_CTS) \
|| ((__VALUE__) == LL_LPUART_HWCONTROL_RTS_CTS))
/**
* @}
*/
/* Private function prototypes -----------------------------------------------*/
/* Exported functions --------------------------------------------------------*/
/** @addtogroup LPUART_LL_Exported_Functions
* @{
*/
/** @addtogroup LPUART_LL_EF_Init
* @{
*/
/**
* @brief De-initialize LPUART registers (Registers restored to their default values).
* @param LPUARTx LPUART Instance
* @retval An ErrorStatus enumeration value:
* - SUCCESS: LPUART registers are de-initialized
* - ERROR: not applicable
*/
ErrorStatus LL_LPUART_DeInit(USART_TypeDef *LPUARTx)
{
ErrorStatus status = SUCCESS;
/* Check the parameters */
assert_param(IS_LPUART_INSTANCE(LPUARTx));
if (LPUARTx == LPUART1)
{
/* Force reset of LPUART peripheral */
LL_APB1_GRP1_ForceReset(LL_APB1_GRP1_PERIPH_LPUART1);
/* Release reset of LPUART peripheral */
LL_APB1_GRP1_ReleaseReset(LL_APB1_GRP1_PERIPH_LPUART1);
}
else
{
status = ERROR;
}
return (status);
}
/**
* @brief Initialize LPUART registers according to the specified
* parameters in LPUART_InitStruct.
* @note As some bits in LPUART configuration registers can only be written when
* the LPUART is disabled (USART_CR1_UE bit =0),
* LPUART Peripheral should be in disabled state prior calling this function.
* Otherwise, ERROR result will be returned.
* @note Baud rate value stored in LPUART_InitStruct BaudRate field, should be valid (different from 0).
* @param LPUARTx LPUART Instance
* @param LPUART_InitStruct pointer to a @ref LL_LPUART_InitTypeDef structure
* that contains the configuration information for the specified LPUART peripheral.
* @retval An ErrorStatus enumeration value:
* - SUCCESS: LPUART registers are initialized according to LPUART_InitStruct content
* - ERROR: Problem occurred during LPUART Registers initialization
*/
ErrorStatus LL_LPUART_Init(USART_TypeDef *LPUARTx, LL_LPUART_InitTypeDef *LPUART_InitStruct)
{
ErrorStatus status = ERROR;
uint32_t periphclk;
/* Check the parameters */
assert_param(IS_LPUART_INSTANCE(LPUARTx));
assert_param(IS_LL_LPUART_BAUDRATE(LPUART_InitStruct->BaudRate));
assert_param(IS_LL_LPUART_DATAWIDTH(LPUART_InitStruct->DataWidth));
assert_param(IS_LL_LPUART_STOPBITS(LPUART_InitStruct->StopBits));
assert_param(IS_LL_LPUART_PARITY(LPUART_InitStruct->Parity));
assert_param(IS_LL_LPUART_DIRECTION(LPUART_InitStruct->TransferDirection));
assert_param(IS_LL_LPUART_HWCONTROL(LPUART_InitStruct->HardwareFlowControl));
/* LPUART needs to be in disabled state, in order to be able to configure some bits in
CRx registers. Otherwise (LPUART not in Disabled state) => return ERROR */
if (LL_LPUART_IsEnabled(LPUARTx) == 0U)
{
/*---------------------------- LPUART CR1 Configuration -----------------------
* Configure LPUARTx CR1 (LPUART Word Length, Parity and Transfer Direction bits) with parameters:
* - DataWidth: USART_CR1_M bits according to LPUART_InitStruct->DataWidth value
* - Parity: USART_CR1_PCE, USART_CR1_PS bits according to LPUART_InitStruct->Parity value
* - TransferDirection: USART_CR1_TE, USART_CR1_RE bits according to LPUART_InitStruct->TransferDirection value
*/
MODIFY_REG(LPUARTx->CR1,
(USART_CR1_M | USART_CR1_PCE | USART_CR1_PS | USART_CR1_TE | USART_CR1_RE),
(LPUART_InitStruct->DataWidth | LPUART_InitStruct->Parity | LPUART_InitStruct->TransferDirection));
/*---------------------------- LPUART CR2 Configuration -----------------------
* Configure LPUARTx CR2 (Stop bits) with parameters:
* - Stop Bits: USART_CR2_STOP bits according to LPUART_InitStruct->StopBits value.
*/
LL_LPUART_SetStopBitsLength(LPUARTx, LPUART_InitStruct->StopBits);
/*---------------------------- LPUART CR3 Configuration -----------------------
* Configure LPUARTx CR3 (Hardware Flow Control) with parameters:
* - HardwareFlowControl: USART_CR3_RTSE, USART_CR3_CTSE bits according
* to LPUART_InitStruct->HardwareFlowControl value.
*/
LL_LPUART_SetHWFlowCtrl(LPUARTx, LPUART_InitStruct->HardwareFlowControl);
/*---------------------------- LPUART BRR Configuration -----------------------
* Retrieve Clock frequency used for LPUART Peripheral
*/
periphclk = LL_RCC_GetLPUARTClockFreq(LL_RCC_LPUART1_CLKSOURCE);
/* Configure the LPUART Baud Rate :
- valid baud rate value (different from 0) is required
- Peripheral clock as returned by RCC service, should be valid (different from 0).
*/
if ((periphclk != LL_RCC_PERIPH_FREQUENCY_NO)
&& (LPUART_InitStruct->BaudRate != 0U))
{
status = SUCCESS;
LL_LPUART_SetBaudRate(LPUARTx,
periphclk,
LPUART_InitStruct->BaudRate);
/* Check BRR is greater than or equal to 0x300 */
assert_param(IS_LL_LPUART_BRR_MIN(LPUARTx->BRR));
/* Check BRR is lower than or equal to 0xFFFFF */
assert_param(IS_LL_LPUART_BRR_MAX(LPUARTx->BRR));
}
}
return (status);
}
/**
* @brief Set each @ref LL_LPUART_InitTypeDef field to default value.
* @param LPUART_InitStruct pointer to a @ref LL_LPUART_InitTypeDef structure
* whose fields will be set to default values.
* @retval None
*/
void LL_LPUART_StructInit(LL_LPUART_InitTypeDef *LPUART_InitStruct)
{
/* Set LPUART_InitStruct fields to default values */
LPUART_InitStruct->BaudRate = 9600U;
LPUART_InitStruct->DataWidth = LL_LPUART_DATAWIDTH_8B;
LPUART_InitStruct->StopBits = LL_LPUART_STOPBITS_1;
LPUART_InitStruct->Parity = LL_LPUART_PARITY_NONE ;
LPUART_InitStruct->TransferDirection = LL_LPUART_DIRECTION_TX_RX;
LPUART_InitStruct->HardwareFlowControl = LL_LPUART_HWCONTROL_NONE;
}
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
#endif /* LPUART1 */
/**
* @}
*/
#endif /* USE_FULL_LL_DRIVER */
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

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/**
******************************************************************************
* @file stm32l0xx_ll_rcc.c
* @author MCD Application Team
* @brief RCC LL module driver.
******************************************************************************
* @attention
*
* <h2><center>&copy; Copyright(c) 2016 STMicroelectronics.
* All rights reserved.</center></h2>
*
* This software component is licensed by ST under BSD 3-Clause license,
* the "License"; You may not use this file except in compliance with the
* License. You may obtain a copy of the License at:
* opensource.org/licenses/BSD-3-Clause
*
******************************************************************************
*/
#if defined(USE_FULL_LL_DRIVER)
/* Includes ------------------------------------------------------------------*/
#include "stm32l0xx_ll_rcc.h"
#ifdef USE_FULL_ASSERT
#include "stm32_assert.h"
#else
#define assert_param(expr) ((void)0U)
#endif /* USE_FULL_ASSERT */
/** @addtogroup STM32L0xx_LL_Driver
* @{
*/
#if defined(RCC)
/** @defgroup RCC_LL RCC
* @{
*/
/* Private types -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private constants ---------------------------------------------------------*/
/* Private macros ------------------------------------------------------------*/
/** @addtogroup RCC_LL_Private_Macros
* @{
*/
#if defined(RCC_CCIPR_USART1SEL) && defined(RCC_CCIPR_USART2SEL)
#define IS_LL_RCC_USART_CLKSOURCE(__VALUE__) (((__VALUE__) == LL_RCC_USART1_CLKSOURCE) \
|| ((__VALUE__) == LL_RCC_USART2_CLKSOURCE))
#elif defined(RCC_CCIPR_USART1SEL) && !defined(RCC_CCIPR_USART2SEL)
#define IS_LL_RCC_USART_CLKSOURCE(__VALUE__) (((__VALUE__) == LL_RCC_USART1_CLKSOURCE))
#else
#define IS_LL_RCC_USART_CLKSOURCE(__VALUE__) (((__VALUE__) == LL_RCC_USART2_CLKSOURCE))
#endif /* RCC_CCIPR_USART1SEL && RCC_CCIPR_USART2SEL */
#define IS_LL_RCC_LPUART_CLKSOURCE(__VALUE__) (((__VALUE__) == LL_RCC_LPUART1_CLKSOURCE))
#if defined(RCC_CCIPR_I2C3SEL)
#define IS_LL_RCC_I2C_CLKSOURCE(__VALUE__) (((__VALUE__) == LL_RCC_I2C1_CLKSOURCE) \
|| ((__VALUE__) == LL_RCC_I2C3_CLKSOURCE))
#else
#define IS_LL_RCC_I2C_CLKSOURCE(__VALUE__) ((__VALUE__) == LL_RCC_I2C1_CLKSOURCE)
#endif /* RCC_CCIPR_I2C3SEL */
#define IS_LL_RCC_LPTIM_CLKSOURCE(__VALUE__) ((__VALUE__) == LL_RCC_LPTIM1_CLKSOURCE)
#if defined(USB)
#define IS_LL_RCC_USB_CLKSOURCE(__VALUE__) (((__VALUE__) == LL_RCC_USB_CLKSOURCE))
#endif /* USB */
/**
* @}
*/
/* Private function prototypes -----------------------------------------------*/
/** @defgroup RCC_LL_Private_Functions RCC Private functions
* @{
*/
uint32_t RCC_GetSystemClockFreq(void);
uint32_t RCC_GetHCLKClockFreq(uint32_t SYSCLK_Frequency);
uint32_t RCC_GetPCLK1ClockFreq(uint32_t HCLK_Frequency);
uint32_t RCC_GetPCLK2ClockFreq(uint32_t HCLK_Frequency);
uint32_t RCC_PLL_GetFreqDomain_SYS(void);
/**
* @}
*/
/* Exported functions --------------------------------------------------------*/
/** @addtogroup RCC_LL_Exported_Functions
* @{
*/
/** @addtogroup RCC_LL_EF_Init
* @{
*/
/**
* @brief Reset the RCC clock configuration to the default reset state.
* @note The default reset state of the clock configuration is given below:
* - MSI ON and used as system clock source
* - HSE, HSI and PLL OFF
* - AHB, APB1 and APB2 prescaler set to 1.
* - CSS, MCO OFF
* - All interrupts disabled
* @note This function doesn't modify the configuration of the
* - Peripheral clocks
* - LSI, LSE and RTC clocks
* @retval An ErrorStatus enumeration value:
* - SUCCESS: RCC registers are de-initialized
* - ERROR: not applicable
*/
ErrorStatus LL_RCC_DeInit(void)
{
__IO uint32_t vl_mask;
/* Set MSION bit */
LL_RCC_MSI_Enable();
/* Insure MSIRDY bit is set before writing default MSIRANGE value */
while (LL_RCC_MSI_IsReady() == 0U)
{
__NOP();
}
/* Set MSIRANGE default value */
LL_RCC_MSI_SetRange(LL_RCC_MSIRANGE_5);
/* Set MSITRIM bits to the reset value*/
LL_RCC_MSI_SetCalibTrimming(0U);
/* Set HSITRIM bits to the reset value*/
LL_RCC_HSI_SetCalibTrimming(0x10U);
/* Reset SW, HPRE, PPRE1, PPRE2, MCOSEL and MCOPRE bits */
vl_mask = 0xFFFFFFFFU;
CLEAR_BIT(vl_mask, RCC_CFGR_SW | RCC_CFGR_HPRE | RCC_CFGR_PPRE1 | RCC_CFGR_PPRE2 | \
RCC_CFGR_MCOSEL | RCC_CFGR_MCOPRE);
LL_RCC_WriteReg(CFGR, vl_mask);
/* Reset HSI, HSE, PLL */
vl_mask = LL_RCC_ReadReg(CR);
#if defined(RCC_CR_HSIOUTEN)
CLEAR_BIT(vl_mask, RCC_CR_HSION| RCC_CR_HSIKERON| RCC_CR_HSIDIVEN | RCC_CR_HSIOUTEN | \
RCC_CR_HSEON | RCC_CR_PLLON);
#else
CLEAR_BIT(vl_mask, RCC_CR_HSION| RCC_CR_HSIKERON| RCC_CR_HSIDIVEN | \
RCC_CR_HSEON | RCC_CR_PLLON);
#endif
LL_RCC_WriteReg(CR, vl_mask);
/* Delay after an RCC peripheral clock */
vl_mask = LL_RCC_ReadReg(CR);
/* Reset HSEBYP bit */
LL_RCC_HSE_DisableBypass();
/* Set RCC_CR_RTCPRE to 0b00*/
CLEAR_BIT(vl_mask, RCC_CR_RTCPRE);
LL_RCC_WriteReg(CR, vl_mask);
/* Insure PLL is disabled before to reset PLLSRC/PLLMUL/PLLDIV in CFGR register */
while(LL_RCC_PLL_IsReady() != 0U) {};
/* Reset CFGR register */
LL_RCC_WriteReg(CFGR, 0x00000000U);
#if defined(RCC_HSI48_SUPPORT)
/* Reset CRRCR register to disable HSI48 */
#if defined(RCC_CRRCR_HSI48DIV6OUTEN)
CLEAR_BIT(RCC->CRRCR, (RCC_CRRCR_HSI48ON | RCC_CRRCR_HSI48DIV6OUTEN));
#else
CLEAR_BIT(RCC->CRRCR, RCC_CRRCR_HSI48ON);
#endif
#endif /*RCC_HSI48_SUPPORT*/
/* Disable all interrupts */
LL_RCC_WriteReg(CIER, 0x00000000U);
/* Disable all interrupt flags */
LL_RCC_WriteReg(CICR, 0xFFFFFFFFU);
/* Clear reset flags */
LL_RCC_ClearResetFlags();
return SUCCESS;
}
/**
* @}
*/
/** @addtogroup RCC_LL_EF_Get_Freq
* @brief Return the frequencies of different on chip clocks; System, AHB, APB1 and APB2 buses clocks
* and different peripheral clocks available on the device.
* @note If SYSCLK source is MSI, function returns values based on MSI clock(*)
* @note If SYSCLK source is HSI, function returns values based on HSI_VALUE(**)
* @note If SYSCLK source is HSE, function returns values based on HSE_VALUE(***)
* @note If SYSCLK source is PLL, function returns values based on
* HSI_VALUE(**) or HSE_VALUE(***) multiplied/divided by the PLL factors.
* @note (*) MSI clock depends on the selected MSI range but the real value
* may vary depending on the variations in voltage and temperature.
* @note (**) HSI_VALUE is a defined constant but the real value may vary
* depending on the variations in voltage and temperature.
* @note (***) HSE_VALUE is a defined constant, user has to ensure that
* HSE_VALUE is same as the real frequency of the crystal used.
* Otherwise, this function may have wrong result.
* @note The result of this function could be incorrect when using fractional
* value for HSE crystal.
* @note This function can be used by the user application to compute the
* baud-rate for the communication peripherals or configure other parameters.
* @{
*/
/**
* @brief Return the frequencies of different on chip clocks; System, AHB, APB1 and APB2 buses clocks
* @note Each time SYSCLK, HCLK, PCLK1 and/or PCLK2 clock changes, this function
* must be called to update structure fields. Otherwise, any
* configuration based on this function will be incorrect.
* @param RCC_Clocks pointer to a @ref LL_RCC_ClocksTypeDef structure which will hold the clocks frequencies
* @retval None
*/
void LL_RCC_GetSystemClocksFreq(LL_RCC_ClocksTypeDef *RCC_Clocks)
{
/* Get SYSCLK frequency */
RCC_Clocks->SYSCLK_Frequency = RCC_GetSystemClockFreq();
/* HCLK clock frequency */
RCC_Clocks->HCLK_Frequency = RCC_GetHCLKClockFreq(RCC_Clocks->SYSCLK_Frequency);
/* PCLK1 clock frequency */
RCC_Clocks->PCLK1_Frequency = RCC_GetPCLK1ClockFreq(RCC_Clocks->HCLK_Frequency);
/* PCLK2 clock frequency */
RCC_Clocks->PCLK2_Frequency = RCC_GetPCLK2ClockFreq(RCC_Clocks->HCLK_Frequency);
}
/**
* @brief Return USARTx clock frequency
* @param USARTxSource This parameter can be one of the following values:
* @arg @ref LL_RCC_USART1_CLKSOURCE
* @arg @ref LL_RCC_USART2_CLKSOURCE (*)
*
* (*) value not defined in all devices.
* @retval USART clock frequency (in Hz)
* @arg @ref LL_RCC_PERIPH_FREQUENCY_NO indicates that oscillator (HSI or LSE) is not ready
*/
uint32_t LL_RCC_GetUSARTClockFreq(uint32_t USARTxSource)
{
uint32_t usart_frequency = LL_RCC_PERIPH_FREQUENCY_NO;
/* Check parameter */
assert_param(IS_LL_RCC_USART_CLKSOURCE(USARTxSource));
#if defined(RCC_CCIPR_USART1SEL)
if (USARTxSource == LL_RCC_USART1_CLKSOURCE)
{
/* USART1CLK clock frequency */
switch (LL_RCC_GetUSARTClockSource(USARTxSource))
{
case LL_RCC_USART1_CLKSOURCE_SYSCLK: /* USART1 Clock is System Clock */
usart_frequency = RCC_GetSystemClockFreq();
break;
case LL_RCC_USART1_CLKSOURCE_HSI: /* USART1 Clock is HSI Osc. */
if (LL_RCC_HSI_IsReady() != 0U)
{
if (LL_RCC_IsActiveFlag_HSIDIV() != 0U)
{
usart_frequency = (HSI_VALUE >> 2U);
}
else
{
usart_frequency = HSI_VALUE;
}
}
break;
case LL_RCC_USART1_CLKSOURCE_LSE: /* USART1 Clock is LSE Osc. */
if (LL_RCC_LSE_IsReady() != 0U)
{
usart_frequency = LSE_VALUE;
}
break;
case LL_RCC_USART1_CLKSOURCE_PCLK2: /* USART1 Clock is PCLK2 */
default:
usart_frequency = RCC_GetPCLK2ClockFreq(RCC_GetHCLKClockFreq(RCC_GetSystemClockFreq()));
break;
}
}
#endif /* RCC_CCIPR_USART1SEL */
#if defined(RCC_CCIPR_USART2SEL)
if (USARTxSource == LL_RCC_USART2_CLKSOURCE)
{
/* USART2CLK clock frequency */
switch (LL_RCC_GetUSARTClockSource(USARTxSource))
{
case LL_RCC_USART2_CLKSOURCE_SYSCLK: /* USART2 Clock is System Clock */
usart_frequency = RCC_GetSystemClockFreq();
break;
case LL_RCC_USART2_CLKSOURCE_HSI: /* USART2 Clock is HSI Osc. */
if (LL_RCC_HSI_IsReady() != 0U)
{
if (LL_RCC_IsActiveFlag_HSIDIV() != 0U)
{
usart_frequency = (HSI_VALUE >> 2U);
}
else
{
usart_frequency = HSI_VALUE;
}
}
break;
case LL_RCC_USART2_CLKSOURCE_LSE: /* USART2 Clock is LSE Osc. */
if (LL_RCC_LSE_IsReady() != 0U)
{
usart_frequency = LSE_VALUE;
}
break;
case LL_RCC_USART2_CLKSOURCE_PCLK1: /* USART2 Clock is PCLK1 */
default:
usart_frequency = RCC_GetPCLK1ClockFreq(RCC_GetHCLKClockFreq(RCC_GetSystemClockFreq()));
break;
}
}
#endif /* RCC_CCIPR_USART2SEL */
return usart_frequency;
}
/**
* @brief Return I2Cx clock frequency
* @param I2CxSource This parameter can be one of the following values:
* @arg @ref LL_RCC_I2C1_CLKSOURCE
* @arg @ref LL_RCC_I2C3_CLKSOURCE (*)
*
* (*) value not defined in all devices
* @retval I2C clock frequency (in Hz)
* @arg @ref LL_RCC_PERIPH_FREQUENCY_NO indicates that HSI oscillator is not ready
*/
uint32_t LL_RCC_GetI2CClockFreq(uint32_t I2CxSource)
{
uint32_t i2c_frequency = LL_RCC_PERIPH_FREQUENCY_NO;
/* Check parameter */
assert_param(IS_LL_RCC_I2C_CLKSOURCE(I2CxSource));
/* I2C1 CLK clock frequency */
if (I2CxSource == LL_RCC_I2C1_CLKSOURCE)
{
switch (LL_RCC_GetI2CClockSource(I2CxSource))
{
case LL_RCC_I2C1_CLKSOURCE_SYSCLK: /* I2C1 Clock is System Clock */
i2c_frequency = RCC_GetSystemClockFreq();
break;
case LL_RCC_I2C1_CLKSOURCE_HSI: /* I2C1 Clock is HSI Osc. */
if (LL_RCC_HSI_IsReady() != 0U)
{
if (LL_RCC_IsActiveFlag_HSIDIV() != 0U)
{
i2c_frequency = (HSI_VALUE >> 2U);
}
else
{
i2c_frequency = HSI_VALUE;
}
}
break;
case LL_RCC_I2C1_CLKSOURCE_PCLK1: /* I2C1 Clock is PCLK1 */
default:
i2c_frequency = RCC_GetPCLK1ClockFreq(RCC_GetHCLKClockFreq(RCC_GetSystemClockFreq()));
break;
}
}
#if defined(RCC_CCIPR_I2C3SEL)
/* I2C3 CLK clock frequency */
if (I2CxSource == LL_RCC_I2C3_CLKSOURCE)
{
switch (LL_RCC_GetI2CClockSource(I2CxSource))
{
case LL_RCC_I2C3_CLKSOURCE_SYSCLK: /* I2C3 Clock is System Clock */
i2c_frequency = RCC_GetSystemClockFreq();
break;
case LL_RCC_I2C3_CLKSOURCE_HSI: /* I2C3 Clock is HSI Osc. */
if (LL_RCC_HSI_IsReady() != 0U)
{
if (LL_RCC_IsActiveFlag_HSIDIV() != 0U)
{
i2c_frequency = (HSI_VALUE >> 2U);
}
else
{
i2c_frequency = HSI_VALUE;
}
}
break;
case LL_RCC_I2C3_CLKSOURCE_PCLK1: /* I2C3 Clock is PCLK1 */
default:
i2c_frequency = RCC_GetPCLK1ClockFreq(RCC_GetHCLKClockFreq(RCC_GetSystemClockFreq()));
break;
}
}
#endif /*RCC_CCIPR_I2C3SEL*/
return i2c_frequency;
}
/**
* @brief Return LPUARTx clock frequency
* @param LPUARTxSource This parameter can be one of the following values:
* @arg @ref LL_RCC_LPUART1_CLKSOURCE
* @retval LPUART clock frequency (in Hz)
* @arg @ref LL_RCC_PERIPH_FREQUENCY_NO indicates that oscillator (HSI or LSE) is not ready
*/
uint32_t LL_RCC_GetLPUARTClockFreq(uint32_t LPUARTxSource)
{
uint32_t lpuart_frequency = LL_RCC_PERIPH_FREQUENCY_NO;
/* Check parameter */
assert_param(IS_LL_RCC_LPUART_CLKSOURCE(LPUARTxSource));
/* LPUART1CLK clock frequency */
switch (LL_RCC_GetLPUARTClockSource(LPUARTxSource))
{
case LL_RCC_LPUART1_CLKSOURCE_SYSCLK: /* LPUART1 Clock is System Clock */
lpuart_frequency = RCC_GetSystemClockFreq();
break;
case LL_RCC_LPUART1_CLKSOURCE_HSI: /* LPUART1 Clock is HSI Osc. */
if (LL_RCC_HSI_IsReady() != 0U)
{
if (LL_RCC_IsActiveFlag_HSIDIV() != 0U)
{
lpuart_frequency = (HSI_VALUE >> 2U);
}
else
{
lpuart_frequency = HSI_VALUE;
}
}
break;
case LL_RCC_LPUART1_CLKSOURCE_LSE: /* LPUART1 Clock is LSE Osc. */
if (LL_RCC_LSE_IsReady() != 0U)
{
lpuart_frequency = LSE_VALUE;
}
break;
case LL_RCC_LPUART1_CLKSOURCE_PCLK1: /* LPUART1 Clock is PCLK1 */
default:
lpuart_frequency = RCC_GetPCLK1ClockFreq(RCC_GetHCLKClockFreq(RCC_GetSystemClockFreq()));
break;
}
return lpuart_frequency;
}
/**
* @brief Return LPTIMx clock frequency
* @param LPTIMxSource This parameter can be one of the following values:
* @arg @ref LL_RCC_LPTIM1_CLKSOURCE
* @retval LPTIM clock frequency (in Hz)
* @arg @ref LL_RCC_PERIPH_FREQUENCY_NO indicates that oscillator (HSI or LSE) is not ready
*/
uint32_t LL_RCC_GetLPTIMClockFreq(uint32_t LPTIMxSource)
{
uint32_t lptim_frequency = LL_RCC_PERIPH_FREQUENCY_NO;
/* Check parameter */
assert_param(IS_LL_RCC_LPTIM_CLKSOURCE(LPTIMxSource));
if (LPTIMxSource == LL_RCC_LPTIM1_CLKSOURCE)
{
/* LPTIM1CLK clock frequency */
switch (LL_RCC_GetLPTIMClockSource(LPTIMxSource))
{
case LL_RCC_LPTIM1_CLKSOURCE_LSI: /* LPTIM1 Clock is LSI Osc. */
if (LL_RCC_LSI_IsReady() != 0U)
{
lptim_frequency = LSI_VALUE;
}
break;
case LL_RCC_LPTIM1_CLKSOURCE_HSI: /* LPTIM1 Clock is HSI Osc. */
if (LL_RCC_HSI_IsReady() != 0U)
{
if (LL_RCC_IsActiveFlag_HSIDIV() != 0U)
{
lptim_frequency = (HSI_VALUE >> 2U);
}
else
{
lptim_frequency = HSI_VALUE;
}
}
break;
case LL_RCC_LPTIM1_CLKSOURCE_LSE: /* LPTIM1 Clock is LSE Osc. */
if (LL_RCC_LSE_IsReady() != 0U)
{
lptim_frequency = LSE_VALUE;
}
break;
case LL_RCC_LPTIM1_CLKSOURCE_PCLK1: /* LPTIM1 Clock is PCLK1 */
default:
lptim_frequency = RCC_GetPCLK1ClockFreq(RCC_GetHCLKClockFreq(RCC_GetSystemClockFreq()));
break;
}
}
return lptim_frequency;
}
#if defined(USB)
/**
* @brief Return USBx clock frequency
* @param USBxSource This parameter can be one of the following values:
* @arg @ref LL_RCC_USB_CLKSOURCE
* @retval USB clock frequency (in Hz)
* @arg @ref LL_RCC_PERIPH_FREQUENCY_NO indicates that oscillator (HSI48) or PLL is not ready
* @arg @ref LL_RCC_PERIPH_FREQUENCY_NA indicates that no clock source selected
*/
uint32_t LL_RCC_GetUSBClockFreq(uint32_t USBxSource)
{
uint32_t usb_frequency = LL_RCC_PERIPH_FREQUENCY_NO;
/* Check parameter */
assert_param(IS_LL_RCC_USB_CLKSOURCE(USBxSource));
/* USBCLK clock frequency */
switch (LL_RCC_GetUSBClockSource(USBxSource))
{
case LL_RCC_USB_CLKSOURCE_PLL: /* PLL clock used as USB clock source */
if (LL_RCC_PLL_IsReady() != 0U)
{
usb_frequency = RCC_PLL_GetFreqDomain_SYS();
}
break;
case LL_RCC_USB_CLKSOURCE_HSI48: /* HSI48 clock used as USB clock source */
default:
if (LL_RCC_HSI48_IsReady() != 0U)
{
usb_frequency = HSI48_VALUE;
}
break;
}
return usb_frequency;
}
#endif /* USB */
/**
* @}
*/
/**
* @}
*/
/** @addtogroup RCC_LL_Private_Functions
* @{
*/
/**
* @brief Return SYSTEM clock frequency
* @retval SYSTEM clock frequency (in Hz)
*/
uint32_t RCC_GetSystemClockFreq(void)
{
uint32_t frequency;
/* Get SYSCLK source -------------------------------------------------------*/
switch (LL_RCC_GetSysClkSource())
{
case LL_RCC_SYS_CLKSOURCE_STATUS_MSI: /* MSI used as system clock source */
frequency = __LL_RCC_CALC_MSI_FREQ(LL_RCC_MSI_GetRange());
break;
case LL_RCC_SYS_CLKSOURCE_STATUS_HSI: /* HSI used as system clock source */
if (LL_RCC_IsActiveFlag_HSIDIV() != 0U)
{
frequency = (HSI_VALUE >> 2U);
}
else
{
frequency = HSI_VALUE;
}
break;
case LL_RCC_SYS_CLKSOURCE_STATUS_HSE: /* HSE used as system clock source */
frequency = HSE_VALUE;
break;
case LL_RCC_SYS_CLKSOURCE_STATUS_PLL: /* PLL used as system clock source */
frequency = RCC_PLL_GetFreqDomain_SYS();
break;
default:
frequency = __LL_RCC_CALC_MSI_FREQ(LL_RCC_MSI_GetRange());
break;
}
return frequency;
}
/**
* @brief Return HCLK clock frequency
* @param SYSCLK_Frequency SYSCLK clock frequency
* @retval HCLK clock frequency (in Hz)
*/
uint32_t RCC_GetHCLKClockFreq(uint32_t SYSCLK_Frequency)
{
/* HCLK clock frequency */
return __LL_RCC_CALC_HCLK_FREQ(SYSCLK_Frequency, LL_RCC_GetAHBPrescaler());
}
/**
* @brief Return PCLK1 clock frequency
* @param HCLK_Frequency HCLK clock frequency
* @retval PCLK1 clock frequency (in Hz)
*/
uint32_t RCC_GetPCLK1ClockFreq(uint32_t HCLK_Frequency)
{
/* PCLK1 clock frequency */
return __LL_RCC_CALC_PCLK1_FREQ(HCLK_Frequency, LL_RCC_GetAPB1Prescaler());
}
/**
* @brief Return PCLK2 clock frequency
* @param HCLK_Frequency HCLK clock frequency
* @retval PCLK2 clock frequency (in Hz)
*/
uint32_t RCC_GetPCLK2ClockFreq(uint32_t HCLK_Frequency)
{
/* PCLK2 clock frequency */
return __LL_RCC_CALC_PCLK2_FREQ(HCLK_Frequency, LL_RCC_GetAPB2Prescaler());
}
/**
* @brief Return PLL clock frequency used for system domain
* @retval PLL clock frequency (in Hz)
*/
uint32_t RCC_PLL_GetFreqDomain_SYS(void)
{
uint32_t pllinputfreq, pllsource;
/* PLL_VCO = (HSE_VALUE or HSI_VALUE / PLL divider) * PLL Multiplicator */
/* Get PLL source */
pllsource = LL_RCC_PLL_GetMainSource();
switch (pllsource)
{
case LL_RCC_PLLSOURCE_HSI: /* HSI used as PLL clock source */
if (LL_RCC_IsActiveFlag_HSIDIV() != 0U)
{
pllinputfreq = (HSI_VALUE >> 2U);
}
else
{
pllinputfreq = HSI_VALUE;
}
break;
default: /* HSE used as PLL clock source */
pllinputfreq = HSE_VALUE;
break;
}
return __LL_RCC_CALC_PLLCLK_FREQ(pllinputfreq, LL_RCC_PLL_GetMultiplicator(), LL_RCC_PLL_GetDivider());
}
/**
* @}
*/
/**
* @}
*/
#endif /* defined(RCC) */
/**
* @}
*/
#endif /* USE_FULL_LL_DRIVER */
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

591
fw/Drivers/STM32L0xx_HAL_Driver/Src/stm32l0xx_ll_utils.c Normal file
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@@ -0,0 +1,591 @@
/**
******************************************************************************
* @file stm32l0xx_ll_utils.c
* @author MCD Application Team
* @brief UTILS LL module driver.
******************************************************************************
* @attention
*
* <h2><center>&copy; Copyright(c) 2016 STMicroelectronics.
* All rights reserved.</center></h2>
*
* This software component is licensed by ST under BSD 3-Clause license,
* the "License"; You may not use this file except in compliance with the
* License. You may obtain a copy of the License at:
* opensource.org/licenses/BSD-3-Clause
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "stm32l0xx_ll_rcc.h"
#include "stm32l0xx_ll_utils.h"
#include "stm32l0xx_ll_system.h"
#include "stm32l0xx_ll_pwr.h"
#ifdef USE_FULL_ASSERT
#include "stm32_assert.h"
#else
#define assert_param(expr) ((void)0U)
#endif
/** @addtogroup STM32L0xx_LL_Driver
* @{
*/
/** @addtogroup UTILS_LL
* @{
*/
/* Private types -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private constants ---------------------------------------------------------*/
/** @addtogroup UTILS_LL_Private_Constants
* @{
*/
#define UTILS_MAX_FREQUENCY_SCALE1 (32000000U) /*!< Maximum frequency for system clock at power scale1, in Hz */
#define UTILS_MAX_FREQUENCY_SCALE2 (16000000U) /*!< Maximum frequency for system clock at power scale2, in Hz */
#define UTILS_MAX_FREQUENCY_SCALE3 (4194304U) /*!< Maximum frequency for system clock at power scale3, in Hz */
/* Defines used for PLL range */
#define UTILS_PLLVCO_OUTPUT_SCALE1 (96000000U) /*!< Frequency max for PLLVCO output at power scale1, in Hz */
#define UTILS_PLLVCO_OUTPUT_SCALE2 (48000000U) /*!< Frequency max for PLLVCO output at power scale2, in Hz */
#define UTILS_PLLVCO_OUTPUT_SCALE3 (24000000U) /*!< Frequency max for PLLVCO output at power scale3, in Hz */
/* Defines used for HSE range */
#define UTILS_HSE_FREQUENCY_MIN (1000000U) /*!< Frequency min for HSE frequency, in Hz */
#define UTILS_HSE_FREQUENCY_MAX (24000000U) /*!< Frequency max for HSE frequency, in Hz */
/* Defines used for FLASH latency according to HCLK Frequency */
#define UTILS_SCALE1_LATENCY1_FREQ (16000000U) /*!< HCLK frequency to set FLASH latency 1 in power scale 1 */
#define UTILS_SCALE2_LATENCY1_FREQ (8000000U) /*!< HCLK frequency to set FLASH latency 1 in power scale 2 */
#define UTILS_SCALE3_LATENCY1_FREQ (2000000U) /*!< HCLK frequency to set FLASH latency 1 in power scale 3 */
/**
* @}
*/
/* Private macros ------------------------------------------------------------*/
/** @addtogroup UTILS_LL_Private_Macros
* @{
*/
#define IS_LL_UTILS_SYSCLK_DIV(__VALUE__) (((__VALUE__) == LL_RCC_SYSCLK_DIV_1) \
|| ((__VALUE__) == LL_RCC_SYSCLK_DIV_2) \
|| ((__VALUE__) == LL_RCC_SYSCLK_DIV_4) \
|| ((__VALUE__) == LL_RCC_SYSCLK_DIV_8) \
|| ((__VALUE__) == LL_RCC_SYSCLK_DIV_16) \
|| ((__VALUE__) == LL_RCC_SYSCLK_DIV_64) \
|| ((__VALUE__) == LL_RCC_SYSCLK_DIV_128) \
|| ((__VALUE__) == LL_RCC_SYSCLK_DIV_256) \
|| ((__VALUE__) == LL_RCC_SYSCLK_DIV_512))
#define IS_LL_UTILS_APB1_DIV(__VALUE__) (((__VALUE__) == LL_RCC_APB1_DIV_1) \
|| ((__VALUE__) == LL_RCC_APB1_DIV_2) \
|| ((__VALUE__) == LL_RCC_APB1_DIV_4) \
|| ((__VALUE__) == LL_RCC_APB1_DIV_8) \
|| ((__VALUE__) == LL_RCC_APB1_DIV_16))
#define IS_LL_UTILS_APB2_DIV(__VALUE__) (((__VALUE__) == LL_RCC_APB2_DIV_1) \
|| ((__VALUE__) == LL_RCC_APB2_DIV_2) \
|| ((__VALUE__) == LL_RCC_APB2_DIV_4) \
|| ((__VALUE__) == LL_RCC_APB2_DIV_8) \
|| ((__VALUE__) == LL_RCC_APB2_DIV_16))
#define IS_LL_UTILS_PLLMUL_VALUE(__VALUE__) (((__VALUE__) == LL_RCC_PLL_MUL_3) \
|| ((__VALUE__) == LL_RCC_PLL_MUL_4) \
|| ((__VALUE__) == LL_RCC_PLL_MUL_6) \
|| ((__VALUE__) == LL_RCC_PLL_MUL_8) \
|| ((__VALUE__) == LL_RCC_PLL_MUL_12) \
|| ((__VALUE__) == LL_RCC_PLL_MUL_16) \
|| ((__VALUE__) == LL_RCC_PLL_MUL_24) \
|| ((__VALUE__) == LL_RCC_PLL_MUL_32) \
|| ((__VALUE__) == LL_RCC_PLL_MUL_48))
#define IS_LL_UTILS_PLLDIV_VALUE(__VALUE__) (((__VALUE__) == LL_RCC_PLL_DIV_2) || ((__VALUE__) == LL_RCC_PLL_DIV_3) || \
((__VALUE__) == LL_RCC_PLL_DIV_4))
#define IS_LL_UTILS_PLLVCO_OUTPUT(__VALUE__) ((LL_PWR_GetRegulVoltageScaling() == LL_PWR_REGU_VOLTAGE_SCALE1) ? ((__VALUE__) <= UTILS_PLLVCO_OUTPUT_SCALE1) : \
((LL_PWR_GetRegulVoltageScaling() == LL_PWR_REGU_VOLTAGE_SCALE2) ? ((__VALUE__) <= UTILS_PLLVCO_OUTPUT_SCALE2) : \
((__VALUE__) <= UTILS_PLLVCO_OUTPUT_SCALE3)))
#define IS_LL_UTILS_PLL_FREQUENCY(__VALUE__) ((LL_PWR_GetRegulVoltageScaling() == LL_PWR_REGU_VOLTAGE_SCALE1) ? ((__VALUE__) <= UTILS_MAX_FREQUENCY_SCALE1) : \
((LL_PWR_GetRegulVoltageScaling() == LL_PWR_REGU_VOLTAGE_SCALE2) ? ((__VALUE__) <= UTILS_MAX_FREQUENCY_SCALE2) : \
((__VALUE__) <= UTILS_MAX_FREQUENCY_SCALE3)))
#define IS_LL_UTILS_HSE_BYPASS(__STATE__) (((__STATE__) == LL_UTILS_HSEBYPASS_ON) \
|| ((__STATE__) == LL_UTILS_HSEBYPASS_OFF))
#define IS_LL_UTILS_HSE_FREQUENCY(__FREQUENCY__) (((__FREQUENCY__) >= UTILS_HSE_FREQUENCY_MIN) && ((__FREQUENCY__) <= UTILS_HSE_FREQUENCY_MAX))
/**
* @}
*/
/* Private function prototypes -----------------------------------------------*/
/** @defgroup UTILS_LL_Private_Functions UTILS Private functions
* @{
*/
static uint32_t UTILS_GetPLLOutputFrequency(uint32_t PLL_InputFrequency,
LL_UTILS_PLLInitTypeDef *UTILS_PLLInitStruct);
static ErrorStatus UTILS_EnablePLLAndSwitchSystem(uint32_t SYSCLK_Frequency, LL_UTILS_ClkInitTypeDef *UTILS_ClkInitStruct);
static ErrorStatus UTILS_PLL_IsBusy(void);
/**
* @}
*/
/* Exported functions --------------------------------------------------------*/
/** @addtogroup UTILS_LL_Exported_Functions
* @{
*/
/** @addtogroup UTILS_LL_EF_DELAY
* @{
*/
/**
* @brief This function configures the Cortex-M SysTick source to have 1ms time base.
* @note When a RTOS is used, it is recommended to avoid changing the Systick
* configuration by calling this function, for a delay use rather osDelay RTOS service.
* @param HCLKFrequency HCLK frequency in Hz
* @note HCLK frequency can be calculated thanks to RCC helper macro or function @ref LL_RCC_GetSystemClocksFreq
* @retval None
*/
void LL_Init1msTick(uint32_t HCLKFrequency)
{
/* Use frequency provided in argument */
LL_InitTick(HCLKFrequency, 1000U);
}
/**
* @brief This function provides accurate delay (in milliseconds) based
* on SysTick counter flag
* @note When a RTOS is used, it is recommended to avoid using blocking delay
* and use rather osDelay service.
* @note To respect 1ms timebase, user should call @ref LL_Init1msTick function which
* will configure Systick to 1ms
* @param Delay specifies the delay time length, in milliseconds.
* @retval None
*/
void LL_mDelay(uint32_t Delay)
{
__IO uint32_t tmp = SysTick->CTRL; /* Clear the COUNTFLAG first */
/* Add this code to indicate that local variable is not used */
((void)tmp);
/* Add a period to guaranty minimum wait */
if (Delay < LL_MAX_DELAY)
{
Delay++;
}
while (Delay)
{
if ((SysTick->CTRL & SysTick_CTRL_COUNTFLAG_Msk) != 0U)
{
Delay--;
}
}
}
/**
* @}
*/
/** @addtogroup UTILS_EF_SYSTEM
* @brief System Configuration functions
*
@verbatim
===============================================================================
##### System Configuration functions #####
===============================================================================
[..]
System, AHB and APB buses clocks configuration
(+) The maximum frequency of the SYSCLK, HCLK, PCLK1 and PCLK2 is 32000000 Hz.
@endverbatim
@internal
Depending on the device voltage range, the maximum frequency should be
adapted accordingly:
(++) +----------------------------------------------------------------+
(++) | Wait states | HCLK clock frequency (MHz) |
(++) | |------------------------------------------------|
(++) | (Latency) | voltage range | voltage range |
(++) | | 1.65 V - 3.6 V | 2.0 V - 3.6 V |
(++) | |----------------|---------------|---------------|
(++) | | VCORE = 1.2 V | VCORE = 1.5 V | VCORE = 1.8 V |
(++) |-------------- |----------------|---------------|---------------|
(++) |0WS(1CPU cycle)|0 < HCLK <= 2 |0 < HCLK <= 8 |0 < HCLK <= 16 |
(++) |---------------|----------------|---------------|---------------|
(++) |1WS(2CPU cycle)|2 < HCLK <= 4 |8 < HCLK <= 16 |16 < HCLK <= 32|
(++) +----------------------------------------------------------------+
@endinternal
* @{
*/
/**
* @brief This function sets directly SystemCoreClock CMSIS variable.
* @note Variable can be calculated also through SystemCoreClockUpdate function.
* @param HCLKFrequency HCLK frequency in Hz (can be calculated thanks to RCC helper macro)
* @retval None
*/
void LL_SetSystemCoreClock(uint32_t HCLKFrequency)
{
/* HCLK clock frequency */
SystemCoreClock = HCLKFrequency;
}
/**
* @brief Update number of Flash wait states in line with new frequency and current
voltage range.
* @param Frequency HCLK frequency
* @retval An ErrorStatus enumeration value:
* - SUCCESS: Latency has been modified
* - ERROR: Latency cannot be modified
*/
ErrorStatus LL_SetFlashLatency(uint32_t Frequency)
{
uint32_t timeout;
uint32_t getlatency;
uint32_t latency;
ErrorStatus status = SUCCESS;
/* Frequency cannot be equal to 0 */
if ((Frequency == 0U) || (Frequency > UTILS_MAX_FREQUENCY_SCALE1))
{
status = ERROR;
}
else
{
if (LL_PWR_GetRegulVoltageScaling() == LL_PWR_REGU_VOLTAGE_SCALE1)
{
if (Frequency > UTILS_SCALE1_LATENCY1_FREQ)
{
/* 16 < HCLK <= 32 => 1WS (2 CPU cycles) */
latency = LL_FLASH_LATENCY_1;
}
else
{
/* else HCLK < 16MHz default LL_FLASH_LATENCY_0 0WS */
latency = LL_FLASH_LATENCY_0;
}
}
else if (LL_PWR_GetRegulVoltageScaling() == LL_PWR_REGU_VOLTAGE_SCALE2)
{
if (Frequency > UTILS_SCALE2_LATENCY1_FREQ)
{
/* 8 < HCLK <= 16 => 1WS (2 CPU cycles) */
latency = LL_FLASH_LATENCY_1;
}
else
{
/* else HCLK < 8MHz default LL_FLASH_LATENCY_0 0WS */
latency = LL_FLASH_LATENCY_0;
}
}
else
{
if (Frequency > UTILS_SCALE3_LATENCY1_FREQ)
{
/* 2 < HCLK <= 4 => 1WS (2 CPU cycles) */
latency = LL_FLASH_LATENCY_1;
}
else
{
/* else HCLK < 2MHz default LL_FLASH_LATENCY_0 0WS */
latency = LL_FLASH_LATENCY_0;
}
}
if (status != ERROR)
{
LL_FLASH_SetLatency(latency);
/* Check that the new number of wait states is taken into account to access the Flash
memory by reading the FLASH_ACR register */
timeout = 2;
do
{
/* Wait for Flash latency to be updated */
getlatency = LL_FLASH_GetLatency();
timeout--;
} while ((getlatency != latency) && (timeout > 0));
if(getlatency != latency)
{
status = ERROR;
}
else
{
status = SUCCESS;
}
}
}
return status;
}
/**
* @brief This function configures system clock with HSI as clock source of the PLL
* @note The application need to ensure that PLL is disabled.
* @note Function is based on the following formula:
* - PLL output frequency = ((HSI frequency * PLLMul) / PLLDiv)
* - PLLMul: The application software must set correctly the PLL multiplication factor to ensure
* - PLLVCO does not exceed 96 MHz when the product is in range 1,
* - PLLVCO does not exceed 48 MHz when the product is in range 2,
* - PLLVCO does not exceed 24 MHz when the product is in range 3
* @note FLASH latency can be modified through this function.
* @param UTILS_PLLInitStruct pointer to a @ref LL_UTILS_PLLInitTypeDef structure that contains
* the configuration information for the PLL.
* @param UTILS_ClkInitStruct pointer to a @ref LL_UTILS_ClkInitTypeDef structure that contains
* the configuration information for the BUS prescalers.
* @retval An ErrorStatus enumeration value:
* - SUCCESS: Max frequency configuration done
* - ERROR: Max frequency configuration not done
*/
ErrorStatus LL_PLL_ConfigSystemClock_HSI(LL_UTILS_PLLInitTypeDef *UTILS_PLLInitStruct,
LL_UTILS_ClkInitTypeDef *UTILS_ClkInitStruct)
{
ErrorStatus status = SUCCESS;
uint32_t pllfreq = 0U;
/* Check if one of the PLL is enabled */
if (UTILS_PLL_IsBusy() == SUCCESS)
{
/* Calculate the new PLL output frequency */
pllfreq = UTILS_GetPLLOutputFrequency(HSI_VALUE, UTILS_PLLInitStruct);
/* Enable HSI if not enabled */
if (LL_RCC_HSI_IsReady() != 1U)
{
LL_RCC_HSI_Enable();
while (LL_RCC_HSI_IsReady() != 1U)
{
/* Wait for HSI ready */
}
}
/* Configure PLL */
LL_RCC_PLL_ConfigDomain_SYS(LL_RCC_PLLSOURCE_HSI, UTILS_PLLInitStruct->PLLMul, UTILS_PLLInitStruct->PLLDiv);
/* Enable PLL and switch system clock to PLL */
status = UTILS_EnablePLLAndSwitchSystem(pllfreq, UTILS_ClkInitStruct);
}
else
{
/* Current PLL configuration cannot be modified */
status = ERROR;
}
return status;
}
/**
* @brief This function configures system clock with HSE as clock source of the PLL
* @note The application need to ensure that PLL is disabled.
* @note Function is based on the following formula:
* - PLL output frequency = ((HSE frequency * PLLMul) / PLLDiv)
* - PLLMul: The application software must set correctly the PLL multiplication factor to to ensure
* - PLLVCO does not exceed 96 MHz when the product is in range 1,
* - PLLVCO does not exceed 48 MHz when the product is in range 2,
* - PLLVCO does not exceed 24 MHz when the product is in range 3
* @note FLASH latency can be modified through this function.
* @param HSEFrequency Value between Min_Data = 1000000 and Max_Data = 24000000
* @param HSEBypass This parameter can be one of the following values:
* @arg @ref LL_UTILS_HSEBYPASS_ON
* @arg @ref LL_UTILS_HSEBYPASS_OFF
* @param UTILS_PLLInitStruct pointer to a @ref LL_UTILS_PLLInitTypeDef structure that contains
* the configuration information for the PLL.
* @param UTILS_ClkInitStruct pointer to a @ref LL_UTILS_ClkInitTypeDef structure that contains
* the configuration information for the BUS prescalers.
* @retval An ErrorStatus enumeration value:
* - SUCCESS: Max frequency configuration done
* - ERROR: Max frequency configuration not done
*/
ErrorStatus LL_PLL_ConfigSystemClock_HSE(uint32_t HSEFrequency, uint32_t HSEBypass,
LL_UTILS_PLLInitTypeDef *UTILS_PLLInitStruct, LL_UTILS_ClkInitTypeDef *UTILS_ClkInitStruct)
{
ErrorStatus status = SUCCESS;
uint32_t pllfreq = 0U;
/* Check the parameters */
assert_param(IS_LL_UTILS_HSE_FREQUENCY(HSEFrequency));
assert_param(IS_LL_UTILS_HSE_BYPASS(HSEBypass));
/* Check if one of the PLL is enabled */
if (UTILS_PLL_IsBusy() == SUCCESS)
{
/* Calculate the new PLL output frequency */
pllfreq = UTILS_GetPLLOutputFrequency(HSEFrequency, UTILS_PLLInitStruct);
/* Enable HSE if not enabled */
if (LL_RCC_HSE_IsReady() != 1U)
{
/* Check if need to enable HSE bypass feature or not */
if (HSEBypass == LL_UTILS_HSEBYPASS_ON)
{
LL_RCC_HSE_EnableBypass();
}
else
{
LL_RCC_HSE_DisableBypass();
}
/* Enable HSE */
LL_RCC_HSE_Enable();
while (LL_RCC_HSE_IsReady() != 1U)
{
/* Wait for HSE ready */
}
}
/* Configure PLL */
LL_RCC_PLL_ConfigDomain_SYS(LL_RCC_PLLSOURCE_HSE, UTILS_PLLInitStruct->PLLMul, UTILS_PLLInitStruct->PLLDiv);
/* Enable PLL and switch system clock to PLL */
status = UTILS_EnablePLLAndSwitchSystem(pllfreq, UTILS_ClkInitStruct);
}
else
{
/* Current PLL configuration cannot be modified */
status = ERROR;
}
return status;
}
/**
* @}
*/
/**
* @}
*/
/** @addtogroup UTILS_LL_Private_Functions
* @{
*/
/**
* @brief Function to check that PLL can be modified
* @param PLL_InputFrequency PLL input frequency (in Hz)
* @param UTILS_PLLInitStruct pointer to a @ref LL_UTILS_PLLInitTypeDef structure that contains
* the configuration information for the PLL.
* @retval PLL output frequency (in Hz)
*/
static uint32_t UTILS_GetPLLOutputFrequency(uint32_t PLL_InputFrequency, LL_UTILS_PLLInitTypeDef *UTILS_PLLInitStruct)
{
uint32_t pllfreq = 0U;
/* Check the parameters */
assert_param(IS_LL_UTILS_PLLMUL_VALUE(UTILS_PLLInitStruct->PLLMul));
assert_param(IS_LL_UTILS_PLLDIV_VALUE(UTILS_PLLInitStruct->PLLDiv));
/* Check different PLL parameters according to RM */
/* The application software must set correctly the PLL multiplication factor to avoid exceeding
96 MHz as PLLVCO when the product is in range 1,
48 MHz as PLLVCO when the product is in range 2,
24 MHz when the product is in range 3. */
pllfreq = PLL_InputFrequency * (PLLMulTable[UTILS_PLLInitStruct->PLLMul >> RCC_CFGR_PLLMUL_Pos]);
assert_param(IS_LL_UTILS_PLLVCO_OUTPUT(pllfreq));
/* The application software must set correctly the PLL multiplication factor to avoid exceeding
maximum frequency 32000000 in range 1 */
pllfreq = pllfreq / ((UTILS_PLLInitStruct->PLLDiv >> RCC_CFGR_PLLDIV_Pos)+1U);
assert_param(IS_LL_UTILS_PLL_FREQUENCY(pllfreq));
return pllfreq;
}
/**
* @brief Function to check that PLL can be modified
* @retval An ErrorStatus enumeration value:
* - SUCCESS: PLL modification can be done
* - ERROR: PLL is busy
*/
static ErrorStatus UTILS_PLL_IsBusy(void)
{
ErrorStatus status = SUCCESS;
/* Check if PLL is busy*/
if (LL_RCC_PLL_IsReady() != 0U)
{
/* PLL configuration cannot be modified */
status = ERROR;
}
return status;
}
/**
* @brief Function to enable PLL and switch system clock to PLL
* @param SYSCLK_Frequency SYSCLK frequency
* @param UTILS_ClkInitStruct pointer to a @ref LL_UTILS_ClkInitTypeDef structure that contains
* the configuration information for the BUS prescalers.
* @retval An ErrorStatus enumeration value:
* - SUCCESS: No problem to switch system to PLL
* - ERROR: Problem to switch system to PLL
*/
static ErrorStatus UTILS_EnablePLLAndSwitchSystem(uint32_t SYSCLK_Frequency, LL_UTILS_ClkInitTypeDef *UTILS_ClkInitStruct)
{
ErrorStatus status = SUCCESS;
uint32_t hclk_frequency = 0U;
assert_param(IS_LL_UTILS_SYSCLK_DIV(UTILS_ClkInitStruct->AHBCLKDivider));
assert_param(IS_LL_UTILS_APB1_DIV(UTILS_ClkInitStruct->APB1CLKDivider));
assert_param(IS_LL_UTILS_APB2_DIV(UTILS_ClkInitStruct->APB2CLKDivider));
/* Calculate HCLK frequency */
hclk_frequency = __LL_RCC_CALC_HCLK_FREQ(SYSCLK_Frequency, UTILS_ClkInitStruct->AHBCLKDivider);
/* Increasing the number of wait states because of higher CPU frequency */
if (SystemCoreClock < hclk_frequency)
{
/* Set FLASH latency to highest latency */
status = LL_SetFlashLatency(hclk_frequency);
}
/* Update system clock configuration */
if (status == SUCCESS)
{
/* Enable PLL */
LL_RCC_PLL_Enable();
while (LL_RCC_PLL_IsReady() != 1U)
{
/* Wait for PLL ready */
}
/* Sysclk activation on the main PLL */
LL_RCC_SetAHBPrescaler(UTILS_ClkInitStruct->AHBCLKDivider);
LL_RCC_SetSysClkSource(LL_RCC_SYS_CLKSOURCE_PLL);
while (LL_RCC_GetSysClkSource() != LL_RCC_SYS_CLKSOURCE_STATUS_PLL)
{
/* Wait for system clock switch to PLL */
}
/* Set APB1 & APB2 prescaler*/
LL_RCC_SetAPB1Prescaler(UTILS_ClkInitStruct->APB1CLKDivider);
LL_RCC_SetAPB2Prescaler(UTILS_ClkInitStruct->APB2CLKDivider);
}
/* Decreasing the number of wait states because of lower CPU frequency */
if (SystemCoreClock > hclk_frequency)
{
/* Set FLASH latency to lowest latency */
status = LL_SetFlashLatency(hclk_frequency);
}
/* Update SystemCoreClock variable */
if (status == SUCCESS)
{
LL_SetSystemCoreClock(hclk_frequency);
}
return status;
}
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/